Police are using an image from surveillance video to search for two home invasion suspects who allegedly knocked on a Surrey B.C. man's door Christmas Eve and hit him over the head.

In a press release Surrey RCMP said two men approached a home on 72 Avenue from the back alley at about 2:30 p.m.

"Even the smallest bit of information that might seem trivial may be the key piece of information that will help identify these persons " - Surrey RCMP Sgt. Paul Hayes

They knocked on the door and when a man answered: "he was immediately assaulted with a blunt instrument and forced back into the home."

The man fought the two attackers who ran away: his head injury required stitches and a second person in the home was uninjured, police said.

Image of the two alleged suspects were caught on surveillance tape.

"Even the smallest bit of information that might seem trivial may be the key piece of information that will help identify these persons and result in two dangerous people being held to account for their actions," Sgt. Paul Hayes wrote in a press realease.

Anybody with information is asked to contact the Surrey RCMP at 604-599-0502 or Crime Stoppers anonymous line at 1-800-222-TIPS.