Lexington police charged two men with making and detonating bombs that contained nails and tacks as shrapnel.
Patrick E. Lloyd, 22, and James E. Myers IV, 26, were both charged with first-degree wanton endangerment and use of a weapon of mass destruction.
Police reports identified the bombs as "MacGyver bombs," typically made by creating a chemical reaction in a plastic bottle that causes it to explode.
Police were called to 391 Sheridan Drive about 9 p.m. Sunday after one of the bombs apparently exploded, startling neighbors. Officers obtained a search warrant and found items inside the house used for making the bombs, Lexington police spokeswoman Sherelle Roberts said.
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Witnesses told police three people lived in the home and fled after setting off the first bomb, she said.
Police found containers prepared with projectiles inside the house. The containers "included tacks and nails as shrapnel capable of causing serious physical injury," court documents said.
During the investigation, one of the bombs "exploded within 10 feet of an officer," according to court documents.
Lloyd and Myerswere taken to the Fayette County Detention Center, where they were being held in lieu of a $30,000 bond each.
Both men pleaded not guilty at their arraignments on Tuesday. They are scheduled to appear in court again at 8:30 a.m. March 21.