Police said a teenage girl who fell into the sea at Ap Lei Chau has died, two days after a 60-year-old man drowned while apparently trying to rescue her.

Officers said the girl, 16, was spotted in waters off South Horizons on Thursday.

She was unconscious and taken to Queen Mary Hospital, where she passed away on Saturday night.

The man, whom police believe had gone into the sea to rescue the girl, died on Thursday night.