ANTIOCH — An elderly Antioch man was in critical condition Sunday after being robbed and attacked on Lone Tree Way near a local hardware store, police said.

Officers were dispatched at 5:17 p.m. Saturday to a robbery in progress at 4873 Lone Tree Way near Orchard Supply Hardware, said Cpl. Mike Hulsey.

When police arrived they found an 83-year-old victim unconscious and bleeding.

Police have not released how the man was injured or what was taken during the robbery, but Lt. Robin Kelley did say that the man was suffering from an apparent head wound.

The victim was taken to a hospital where he was listed in critical condition, Kelley said.

The suspect who attacked the man was not located at the scene and the incident remained under investigation Sunday.

Anyone with information about the case is asked to contact police at 925-778-2441.

Contact Natalie Neysa Alund at 510-293-2469. Follow her at Twitter.com/nataliealund.