An Irish tourist accused of punching his brother and leaving him in a critical condition has been granted bail in a Sydney court.

Barry Lyttle, 33, allegedly punched his younger brother Patrick, 31, during an argument at Potts Point in the early hours of Saturday morning, causing him to fall back and hit the footpath, police say.

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Paramedics treated Patrick at the scene before taking him to St Vincent’s Hospital, where he remains in a critical but stable condition.

Barry will soon be able to visit his brother in hospital after being granted condition bail at Sydney’s Central Local Court on Monday.