Another two beaches were closed on Tuesday morning due to an oil spillage, as a clean-up operation continued to remove greasy lumps of palm oil that has been washing up along the city's coasts.
Deep Water Bay Beach and Turtle Cove Beach were the latest to be closed, bringing the total shut since Sunday to 13.
The Leisure and Cultural Services Department warned people not to swim in the waters at either location.
The oil leaked out into mainland waters last week following a collision between two ships.
An environmentalist has warned that the massive palm oil spillage is becoming more difficult to clean up, as solidified oil is breaking up into smaller pieces.
The director of the Eco-Education and Resources Centre, Ken Ching, said that most of the larger pieces had already been removed by the government, and only smaller pieces were left. But he told RTHK’s Janice Wong that he expects the situation to get worse next week.
Ching said that the water current will weaken by then, so a lot of the oil pieces will be trapped in coastal areas of the city.
He urged the government to increase the pace of its clean-up operation, adding that it would be helpful to know how much oil was spilled .
The thirteen beaches closed are on Lamma and the south side of Hong Kong Island.