A 59-year-old man is was attacked outside St. Barnabas Hospital Friday morning.

Police say Carlos Delgado was headed to a medical program at St. Barnabas around 4 a.m. when five men attacked him.

New 12 is told that Delgado was unconscious when police arrived to the hospital, and thus were unable to question him.

Delgado's ex-wife told the New York Daily News that her former husband had to undergo surgery to relieve pressure from his skull and may have some brain damage as a result of his injuries.

Police are asking anyone with information on the attack to contact them.