Officers found 14 improvised explosive devices while executing a search warrant for a man who had threatened to kill public officials and tried to detonate the devices as he was being arrested, Tennessee authorities said Saturday.

A Tennessee man was arrested after the police alleged he targeted public officials and law enforcement and was discovered with 14 IEDs in his home.

The authorities said Kevin O’Neal tried to set off explosives as Polk County, Tenn., deputies entered his home. More than a dozen devices were later found.