A stranger dragged a woman under a train trestle in Queens, where he hit her in the head and raped her, authorities said Tuesday.

The 22-year-old victim was in the area of Tuskegee Airmen Way and 157th Street in Jamaica shortly before 2:45 a.m. Sunday when the attacker pulled her under a nearby Long Island Rail Road train trestle.

Police said he then hit her over the head with an unspecified “hard object” and sexually assaulted her before fleeing.

The woman was taken to an area hospital for a cut to the back of her head, cops said.

Police provided a video of the suspect, whom they described as being a heavy-set man in his 40s, who stands approximately 5-foot-8.