An 81-year-old man was hospitalized following a robbery Monday night at the new Washington-Wabash CTA station. View Full Caption Chicago Police Department

THE LOOP — An 81-year-old man suffered a serious head injury after getting pushed down the stairs of the Loop's newest train station during a robbery Monday night.

Police said the man was sent to a local hospital's intensive care unit after the robbery at 9:25 p.m. Monday.

The thief yanked the victim's cellphone from his hands while they stood on the platform at the Washington-Wabash train station, which opened in August.

A scuffle followed, and the suspect punched the victim in the face before pushing him down the stairs at the "L" station, said Officer Brandi Wright, a Chicago Police Department spokeswoman.

Police said the victim was treated for bleeding on his brain, cuts to his right temple and various bruises on his body.

Police described the suspect as a 19 to 24-year-old, 5-foot-4 to 5-foot-7 black man wearing a black do-rag, black T-shirt and gray pants.

Anyone with information on the crime is asked to call police at (312) 747-8384