Authorities are searching for three suspects involved in a broad daylight beating and robbery in the Bronx.

The 61-year-old victim was attacked on March 8 outside of an apartment building on West Tremont Avenue around 9:35 a.m., according to investigators.

Police said one of four suspects, who has since been arrested, punched the man, knocking him to the ground. One of the other suspects then punched him again, knocking the victim unconscious, police said.

The suspects stole $17 in cash before fleeing northbound on Kingsland Place, authorities said.

The victim was taken to the hospital for treatment of his injuries, police said.

On Wednesday, police released surveillance images of the three remaining suspects.

Anyone with information is urged to call Crime Stoppers at 800-577-8477.