A 17-year-old fell to his death in Tsim Sha Tsui on Monday afternoon.
He was believed to have been taking part in an extreme sport at the time.
Police said they were alerted at about 3pm that someone had fallen from a height onto the podium of Tsim Sha Tsui Mansion on Lock Road.
The teenager was declared dead at the scene.
Local reports said he was doing parkour at the time.