FAIRFIELD police are looking for three men who sexually assaulted two schoolgirls in Fairfield Park last week.
Police said the girls, each aged 16, met the boys on a train from Blacktown after they had skipped school to go shopping at Castle Hill on Tuesday, April 8.
Detective Superintendent Peter Lennon said the girls asked the men for directions and were promised they would be taken to a bus terminal.
Instead, they were taken to Fairfield.
The group walked to Fairfield Park about 2pm, where the sexual assaults took place.
"It's a very brazen attack," Detective Superintendent Lennon said.
"It's something that is absolutely unforgivable in the local area.
"They're just young girls that were trying to make their way to Castle Hill and got convinced to [travel] via Fairfield.
"It's pretty sad that this sort of thing is going on."
The girls were taken to hospital for medical examination.
"They are obviously very emotionally upset," Detective Superintendent Lennon said.
"They were treated at hospital and provided with ongoing counselling, and we will be talking with them again.
Fairfield police are working with public and private organisations to gather security camera footage.
The three males are described as being Mediterranean or Middle Eastern in appearance.
Police said the first male was described as being aged between 19 and 21 with a dark complexion and about 178 centimetres tall. He had a thin build and dark hair.
The second male is thought to be about 175 centimetres tall, and of thin build. He had black hair.
The third male is possibly aged between 17 and 19, about 175 centimetres.
One of the attackers wore a white shirt and cargo pants; another was wearing a white shirt and tan trousers.
■ Anyone with information is urged to contact Crime Stoppers on 1800 333 000.