Police appeal after 12-year-old assaulted

Police are appealing for information after a 12-year-old girl was sexually assaulted in Newcastle.

She was walking through Hudson Park in Adamstown Heights about 9.15am on Tuesday when she was threatened by a man bearing a knife before being assaulted and forced into a car.

The girl was assaulted further after being driven into bushland before being released at Kotara Railway Station.

Police are searching for a man described as having brown hair and being of a solid/large build.