Three police officers were assaulted when they confronted a man who was allegedly trespassing at Townsville in Queensland.

The man was allegedly entering a number of properties without permission on Tyrrell St in Gulliver about 6.25pm on Saturday.

Queensland Police were called and when they arrived on the scene the man allegedly became violent and assaulted three officers.

A 50-year-old man was arrested and charged with eight offences including three counts of serious assault police officer, two counts of trespass and one possession of a knife.

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He was refused bail and is expected to appear before the Townsville Magistrates Court on Monday.