A man has been charged with attempted murder after an incident in Campsie this morning.
According to NSW Police, emergency services were called to an apartment on Campsie Street just before 5am.
A woman was found at the scene with serious head injuries.
The woman, who police believe to be aged 34, was taken to St George Hospital. She remains in a critical condition.
Officers from Campsie Local Area Command arrested a 51 year-old man, who is the woman's partnet.
He was taken to Campsie Police Station and has been charged with attempted murder.
He was refused bail and will appear at Burwood Local Court tomorrow.