A man was found assaulted and unresponsive Friday at a Birmingham apartment building.

West Precinct officers responded at 8:50 a.m. to a report of an assault in the 400 block of Tuscaloosa Avenue S.W.

Officer Truman Fitzgerald said they found the victim near the entrance to an apartment. Officers were unsure how he had been wounded.

Birmingham Fire and Rescue Service rushed him to UAB Hospital with life-threatening injuries.

The preliminary investigation suggests the victim was involved in a physical altercation with another man that he knows. That information came from a witness.

“We believe he was stabbed,’’ Fitzgerald said. “Officers are at UAB Hospital and will be able to let detectives know how he was injured.”

No arrests have been announced.