A middle-aged man was assaulted and robbed at gunpoint Tuesday night in Spring Garden Township, police said.

The 58-year-old victim was walking southbound on Grantley Road, just south of Kings Mill Road, about 9:25 p.m. when he was approached by three men in the 20s, township police said.

One of them hit the victim in the head, causing him to fall to the ground, according to police.

The robbers then took the victim's wallet and ran off, heading eastbound, police said.

The victim was taken to York Hospital for treatment, according to police, who said his injuries don't appear to be life-threatening.

Anyone with information about the robbery is asked to call Spring Garden Township Police at (717) 843-0851, or call 911.