SAN FRANCISCO -- A legless man rolling across a San Francisco street on his skateboard was killed Tuesday by a U.S. Postal Service semi truck, according to police.

The postal truck was traveling northbound on Third Street and was making a right on Townsend Street when the collision occurred, according to police Sgt. Neville Gittens.

Emergency personnel were called to the intersection at about 12:40 p.m.

According to Gittens, the driver did stop after the incident but police are still investigating whether criminal charges should be filed. The unidentified victim was in the crosswalk when he was hit, Gittens added.