Police will resume their intensive search on Wednesday for a Barrie, Ont. boy whose disappearance was described by his parents as being linked to a video game.

Brandon Crisp, 15, was last seen more than a week ago after fighting with his parents, who revoked his privileges to play the Xbox game "Call of Duty 4: Modern Warfare."

More than two dozen search crew members and five canine units combed the 2nd Line area of Oro-Medonte on Tuesday along an abandoned railway line where Crisp's bike was last seen.

Despite an around-the-clock investigation and anonymous tips pouring into police headquarters, there have been no new leads to help police in the search.

"He's basically disappeared off the face of the Earth," said Sgt. Dave Goodbrand, who vowed to continue looking until Crisp is returned home safely.

It wasn't the first time Crisp's parents had banned the teen from playing the first-person shooting game. But on Monday, Oct. 13, "he became upset and left home," said Goodbrand, adding that the boy was last seen riding away from home on his yellow and black mountain bike at about 3 p.m. after asking his parents for directions to Shanty Bay.

Police have been tracking his user name on the online Xbox account but "he has yet to log on from another location."

Goodbrand described the teen as "obsessed with the game."

"Over the last couple of years, Brandon has become less involved in sports and extremely involved in 'Call of Duty 4.' They have found him waking up in the middle of the night playing it," he said.

While nothing has come so far of the extensive air and ground search, police are hoping their efforts will yield new leads.

They are appealing to locals to search their residences and cottages for any sign of the missing teen.

Brandon is described as male, white, 100 pounds, 5'2", short sandy blond hair. When he was last seen, he was wearing a yellow and grey jacket, a grey American Eagle-brand hoodie, blue jeans, white runners with a camouflage stripe on the sides. He may also be carrying a yellow and grey back pack.

Anyone with information is asked to contact Barrie police at 705-725-7025.