Residents of a town in southern China who oppose a planned trash incinerator have protested for a second weekend and the local government promised not to proceed without public approval.

A statement by police in Boluo County in Guangdong province said people "illegally gathered" on Saturday to protest. It gave no details but a local resident, who would give only his surname, Huang, said he had heard from witnesses that several hundred people were involved.

Authorities face resistance by residents of areas throughout China over plans to build chemical facilities, trash incinerators and other facilities.

In Boluo County, some 3,000 to 4,000 people took part in protests last weekend.

The county Communist Party branch promised in a statement not to proceed with construction without public approval.