An elderly farmer wearing a helmet and a bulletproof vest opened fire on police and set fire to their headquarters, wounding two and forcing authorities to transfer 140 inmates to state lockups.

"It put us out of business," Orange-burg County Sheriff C.R. Smith said of Monday morning's attack.Clyde B. Myers of Branchville, shot six times by police, was in fair condition at Orangeburg-Calhoun Regional Hospital. Two officers suffered minor gunshot wounds.

Warrants will be issued charging Myers, 67, with arson and assault and battery with intent to kill, Smith said, adding that the motive for the attack was unknown.

The law enforcement complex, which houses a jail, the sheriff's department and the city police department in this community of 15,000 people 40 miles south of Columbia, suffered serious damage.

Myers, wearing the vest and steel helmet, crashed his old farm truck through gates at the center, entered through the back door and fired a shotgun, Smith said. "Our officers returned fire."