A 19-year-old man has been stabbed at a busy bus stop in Sydney’s city centre.

The attack occurred outside Wynyard Railway Station on Carrington St, at about 5am on Friday, with a line of blood later visible on the bus information board.

The victim was found with a stab wound to his stomach near the corner of George and Angel streets just before 5.30am.

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Paramedics treated him at the scene before rushing him to St Vincent’s Hospital for further care.

Police quickly established a crime scene and launched an investigation.

They are now appealing for help to identify a man seen nearby at the time.

The suspect is described as being of Mediterranean or Middle Eastern appearance, with facial hair, wearing a beige hooded jumper and light-coloured pants.

Anyone with information about the man or the incident is urged to come forward.