A man died in police custody in Brisbane over the weekend, sparking an investigation by the Ethical Standards Command.

The 41-year-old from Zillmere was arrested at a home in Morningside on July 16 in relation to an outstanding warrant.

He was transported to the Brisbane City Watchhouse where three days later he became unresponsive.

Watchhouse and nursing staff rendered first aid before emergency services arrived however the man died not long after.

“Investigations are ongoing to determine the cause of the man’s death,” Queensland Police said.

“This matter remains under investigation by the Ethical Standards Command on behalf of the State Coroner, with independent oversight by the Crime and Corruption Commission.”

Authorities have been unable to locate a crocodile at popular swimming spot on Queensland’s Sunshine Coast after multiple people reported sightings over the weekend.

A number of people claimed to have seen a croc at Noosa Spit, including two fisherman who said they first spotted the animal on a sonar.

“(We were) fishing and looking at the sonar ... I saw the shape come through. I had a look at it again. I said, ‘that doesn’t look right.’ I had a closer look,” Kai Tapley said.

Earlier Tapley and his friend had heard a rumour that a resident had spotted a crocodile in the area.

The Department of the Environment, Tourism, Science and Innovation began investigating the sightings.

During the day on Tuesay rangers conducted a 15km search of the Noosa River from the mouth to Lake Cooroibah.

That night a 19km search was done of the same area of the river as well as Weyba Rd in the south.

No evidence of a crocodile was found during either searches.

“The department will continue to monitor for further reports,” it said.

“People are encouraged to assist by providing any further information.”

A woman has been charged with the murder of a teenager after the pair were both found unconsious inside a home south of Brisbane.

Police initially found a 40-year-old woman and an 18-year-old man semi-conscious at a home on Marbura Crt in Daisy Hill, a suburb in Logan, on May 30.

The pair, who were known to each other, were both taken to hospital and placed into induced comas.

The teenager died on June 4 while the woman managed to recover.

Police began investigating the incident and intially charged the woman with attempted murder.

They have since upgrdaded this charge to murder, with the woman due to appear at Beenleigh Magistrates Court on Wednesday.

Detective Senior Sergeant Daniel Cunningham said the investigation was “complex and confronting”.

“This is an incredibly tragic case that has had a devastating impact on all involved,” he said.

“Our thoughts are with the young man’s loved ones and those in the community who continue to grieve this loss.”

A man has allegedly stolen a Woolworths grocery truck and led police on a pursuit across Sydney.

About 6am a 23-year-old truck driver was allegedly hit with a stun device and assaulted by a man on Olympic Pde in Bankstown.

The offender took off in the truck, with police later spotting it travelling on the Princes Hwy at Rockdale.

Officers tried to pull over the truck however the driver refused, leading police to engage in an active pursuit.

The pursuit continued at Wolli Creek, where the truck allegedly hit four parked cars but continued driving.

Due to safety concerns the pursuit was stopped with the truck last seen driving on the M8.

The AirWing continued to follow the vehicle which travelled westbound onto the M4 before reaching the Great Western Hwy at Glenbrook.

Police were able to successfuly deploy road spikes and the truck eventually came to a stop at Blaxland.

The driver, a 29-year-old man, was tasered and then arrested.

He was taken to Springwood Police Station before being transported to hospital to be checked for minor injuries he received during the arrest.

The original 23-year-old driver of the Woolworths truck was taken to Bankstown Hospital. The nature of his injuries is unclear.

Police are continuing to investigate.

A car has crashed into a childcare centre in Melbourne’s southwest.

The incident happened at Explorers Early Learning on Fogarty St in Williams Landing just after 9.30am.

A 39-year-old woman was struck by a small piece of debris but she did not require further medical treatment.

No one else was injured.

The driver, a 35-year-old woman, stopped at the scene and spoke with police.

All citybound lanes have reopened on the M4 at Merrylands in Western Sydney following a fatal scooter accident.

The lanes had been closed between the Cumberland Hwy and Burnett St after a male rider was struck twice on the motorway.

Significant delays remain on the M4 and motorists have been urged to allow for plenty of extra travel time.

Local buses in Merrylands, Greystanes and Parramatta had been delayed due to the heavy traffic but are now returning to schedule.

The man was hit near the Burnett Rd on-ramp about 2am.

He was knocked from his scooter by a white sedan and then hit by a second vehicle, which was a police car.

The man was critically injured and paramedics began CPR before the rider was taken to Westmead Hospital fighting for life.

He could not be revived.

NSW Police Assistant Commissioner Brett McFadden provided more details about the incident during a press conference which can be found in earlier post here.

The slow speed of a scooter on the M4 at Western Sydney is being investigated as a possible cause of a deadly crash.

The rider of the “small scooter” was struck once by civilian car, and then again by a police car, before two other vehicles became involved in the crash at Merrylands, by the Burnett Rd on-ramp about 1.50am on Wednesday.

The victim, a man in his 20s or 30s who is yet to be formally identified, could not be revived at Westmead Hospital.

His next of kin is yet to be notified of the death, NSW Police Assistant Commissioner Brett McFadden said at a press conference.

He was in lane one, when a white Kia sedan merged into him from lane two, throwing him off of his scooter.

The rider was then struck by a Toyota Echo driven by an on-duty male senior police constable.

Why the Kia merged when it did, the impact of the police car, and exactly how the other vehicles were involved, will be analysed as part of the critical incident investigation which is subject to independent review.

“I want to emphasise that the police vehicle was not on urgent duty ... they were on their way back to the station at Granville,” McFadden said.

“Everyone involved in this incident is shaken, it’s a tragic set of circumstances.”

It is believed that the young victim was travelling “well below” the 90km/h zone for the area.

“Often when speed is a factor, it’s normally associated with high speed, but this time it’s actually the opposite,” McFadden said.

“We’re getting early indications that a low speed might be a contributing factor.”

Police are looking for witnesses who may have noticed the scooter and any notable driving behaviour before the crash, or who witnessed the crash or aftermath.

Given the nature of the investigation, there is no indication when eastbound lanes of the M4 will reopen to traffic, McFadden said.

Read an earlier report on the incident ​​here​​.

Police are searching for three young siblings who have been reported missing from the Gold Coast.

The 10-year-old girl, six-year-old boy, and a seven-week-old girl are believed to be with their mother, Monique.

They have been missing for almost a week, Queensland Police said.

The 41-year-old woman drives a white Nissan X-Trail with Queensland registration 992XPS.

Police believe the family might be in the Tenterfield area of northeast NSW.

The older brother and sister were last seen near Mirambeena Dr in Pimpama about 8.50am on July 18.

Police have now released images of the family in hopes of locating them, as investigations continue.

Four people have been arrested over a string of armed robberies in Melbourne’s west.

A bottle shop and three service stations were allegedly hit by a group of armed young men throughout Tuesday night.

At least one edged weapon was allegedly pulled on workers at all of the businesses, while the offenders demanded cash and cigarettes, and stole alcohol.

A service station on Fitzgerald Rd in Derrimut was the first to be robbed at 8.15pm, followed by a bottle shop on Sunshine Rd in Tottenham about 8.50pm.

A service station on Davis Rd in Tarneit was the next to be ambushed about 11pm, before the group allegedly robbed a service station on Leakes Rd in Tarneit about 11.10pm.

“Nobody was physically injured during the incidents,” Victoria Police said.

The group fled in a stolen Audi sedan, which was spotted by on-ground and Airwing police who started their pursuit along the Princes Fwy and eventually to Footscray.

A Glenroy man, 20, a Wallan man, 19, a Werribee teen, 18, and a Merri-bek area teen, 17, were arrested on Chatham St and are being interviewed about the incidents.

No charged have been laid.

A teenager remains fighting for life in hospital as family grieve the death of a second boy killed in a jet ski crash.

The 14-year-old boy and 15-year-old boy crashed on the Georges River near Tom Uglys Bridge at Sylvania, in Sydney’s south, about 6pm on Tuesday.

7NEWS understand the jet ski hit an obstacle.

A NSW Police officer entered the water and pulled out a 14-year-old boy with a severed arm, who was taken to Sydney Children’s Hospital in a critical condition.

The 15-year-old boy’s body was retrieved from the water soon after.

NSW Police Insp Timothy Carter spoke with tears in his eyes as he called the incident “a tragedy, to say the least”.

“Not only for the families, but the local community. It also has a significant effect on emergency services.

“Obviously police have done their best to save these kids’ lives, and we obviously feel great empathy towards the families, and we’ll provide them ongoing support.”

A report will prepared for the coroner.