A 41-year-old man has been detained after a woman was stabbed in East Lothian.
Police were called to reports of a disturbance in Burns Wynd, Musselburgh, just before 04:00 on Monday.
They found a 49-year-old woman had been stabbed. She was taken to Edinburgh Royal Infirmary.
She was then transferred to St John's Hospital in Livingston for treatment.