BOSTON, Mass. (WHDH) -- Police are searching for two men suspected of an attack on the 'T.'

Police said a man attacked a 55-year-old man at the Forest Hills Station. The victim was approached by the attacker and a companion. The attacker knocked the victim unconscious. The companion is being considered an accomplice.

The primary suspect was described as a Hispanic male of 22 years of age. He's 5'6", medium build with short brown hair. He had a goatee and was wearing a white Polo shirt and black jeans. The suspect's companion was described as a white male of 20 years of age. He's 5'7", with long, wavy brown hair. He was wearing a baseball hat, a dark colored t-shirt and cargo shorts.

The men are wanted for Aggravated Assault and Battery.