Police are searching for a man who they say tried to sexually assault a woman who was forced into a pickup truck at knifepoint early Monday in Southeast Washington.

The incident occurred about 2 a.m. in the 2000 block of 18th Street SE. Police said the woman told detectives that a man approached her with a knife and made her get into his black pickup truck that had a broken rear windshield covered with plastic.

Police said the woman struggled and escaped.

The man is described as black with brown skin and facial hair, standing about 5-feet-9-inches tall and skinny. He is in his 30s, wore a gray shirt, gray jeans and black jacket, and was armed with a black pocket knife.

Anyone with information is urged to call D.C. police at 202-727-9099 or text the department’s tip line at 50411.