Marine police launched a search off Shek O beach on Hong Kong Island on Tuesday afternoon after reports that a one-meter shark had been spotted in the water, but found nothing. There was no lifeguard on duty as it is not the peak season for swimmers.

A man reported the sighting 400 meters offshore at about 1pm, and police responded with a one-hour search, Apple Daily reported. A notice posted by the Leisure & Cultural Services Department advised beach visitors not to go into the water.

A spokesman for the department said a shark prevention net at Shek O that was destroyed by the super typhoon Mangkhut in 2018 had been  repaired last week. Nets were installed after a series of shark attacks in the 1990s led to six deaths in waters off Sai Kung in the New Territories.

Hong Kong Ocean Park said a few species of sharks were found in eastern waters around Hong Kong, but they were more likely to stray closer to beaches in the summer months.