The girl said two men in a white van pulled up alongside her on Sutton Road in Ashcroft, not far from Ashcroft Public School, about 5pm on Thursday, and the passenger attempted to strike up a conversation with her.

The men, who were described as having distinctive tattoos, then got out of the van and grabbed her around the mouth and on the arm, the girl said.

She told police she bit and kicked the men, who lost their grip on her, and she was able to run away.

The girl initially started running to a friend's house, before she headed home and raised the alarm. The van continued to follow her, she said, and parked outside her home for a short time before leaving.

Police said the girl was not physically harmed, but was terrified by the experience.

Officers attached to the Green Valley Local Area Command have launched an investigation into the incident.

A NSW Police spokeswoman said one of the men was described as being of Caucasian appearance, aged in his late 30s to early 40s, and about 180-185 centimetres tall. He was bald and clean shaven, and had blue eyes and a large build. At the time of the incident, he was wearing a red T-shirt and black shorts, and had the letter 'C' tattooed on the back of his neck.

The second man was about 30 years old and 170 centimetres tall, and was described as having a dark complexion, with short curly black hair, brown eyes and was of a thin build.

He was wearing a long-sleeved red and blue striped shirt and dark blue tracksuit pants. He had a tattoo including, the letters COT outlined in red ink, running down one arm.

The girl told police the van had a black stripe running down the side, rusted wheel rims and only two windows on the vehicle, over the driver and front passenger doors.

Anyone who knows the identity of either man or who recognises the van has been urged to call Crime Stoppers on 1800 333 000 or use the Crime Stoppers online reporting page.