Hong Kong authorities are investigating a suspicious fire that broke out in a residential flat, after a man died when he fell from a building and an elderly woman was overcome due to heavy smoke.

Police received a report of the fire on Friday at around 7pm at a flat in Royal Garden, Ho Man Tin. Firefighters arrived at the scene, used a ladder to access the flat, and put out the blaze about 30 minutes later.

During the incident, a man fell from the sixth floor of a building onto the car park,...