D.C. Police released this surveillance video showing a person of interest in the sexual assault incident. (D.C. Police)

D.C. Police are searching for a man who assaulted a woman and attempted to rape her at a Northwest Washington hotel, authorities said Sunday.

The assault occurred Saturday night in a hotel room on the 11th floor of the Grand Hyatt Washington, at 10th and H streets NW near Metro Center, according to a D.C. Police incident report.

A woman told police that an unknown man pushed her up against a bed, held her at knife point and demanded she remove her clothing, the report said.

When the assailant pulled down his pants, the woman resisted and a scuffle ensued, according to the report. The man pulled the woman’s hair with such force that it was “separated from her scalp” the report said.

She ran away and called police.

D.C. Police spokesman Officer Sean Hickman said the woman was hospitalized, treated and released. No arrests had been made in the case by Sunday afternoon.

Police were looking for a light-complexioned Hispanic man with black hair, with a medium-build, 21 to 25 years old and 5-foot-1 to 5-foot-6 in height. Police said he wore a blue jacket, dark-colored pants and white or gray shoes.

Anyone with information on the case should call 202-727-9099 or text 50411.