MCLEAN, Va. (CBSDC) - Fairfax County police are looking for a man who allegedly sexually assaulted a woman in McLean late Sunday evening.

Police say a 19-year-old woman was walking along the 7600 block of Lee Highway in McLean around 11 p.m. when a man approached her and pulled out a knife. He then forced her into nearby brush where he sexually assaulted the woman.

Police describe the man as a short Hispanic man in his thirties, with short black hair. The man was last seen wearing a black t-shirt and jeans.

Anyone with information on the assault or suspect is asked to call Crime Solvers at (866) 411-TIPS or the police at (703) 691-2131.