Sydney child molester hunt continues

Police hunting a child sex predator are looking for a woman who warned people about a man acting suspiciously near the western Sydney toilet block where two sisters, aged two and six, were sexually assaulted.

They have also released more details about their suspect.

He is described as having a tanned complexion, possibly of Middle Eastern or Mediterranean appearance, aged 20 to 30 years, of medium to skinny build with black hair.

He was wearing a black jacket with white marking and blue shorts.

Local police and child abuse squad detectives have been searching for the man since last Thursday after the sexual and indecent assault of the sisters in a toilet block at a park in Guildford.

They want to speak to a woman who warned several people about a man who was acting suspiciously near the female toilets in the park.

"She was wearing a black headscarf, an olive and black calf-length cardigan, black pants and black and white sneakers," police said.

Police want anyone with information to contact Crime Stoppers on 1800 333 000.