CUYAHOGA FALLS -- Authorities say they have charged a former doctor in Ohio after finding dozens of pipe bombs, an assortment of firearms and hundreds of rounds of ammunition in his apartment.

Authorities say they don't know why the man had the arsenal or if he had any plans to use the weapons.

CUYAHOGA FALLS, Ohio -- A former doctor has been charged with unlawful possession of an explosive device after police found 30 pipe bombs in his apartment.

Police searched the Center Avenue apartment Monday night after a bomb exploded there. The blast sent the occupant, Mark Campano, to the hospital with a hand injury.

After Campano, 56, was released from the hospital Wednesday, he was taken into custody by federal marshals.

Authorities found 19 bombs made of copper pipe and 11 devices made of PC pipe, as well as explosive powder and other tools used to make bombs, according to documents filed in U.S. District Court. Authorities also had 17 guns and hundreds of rounds of ammunition.

Campano is a former anesthesiologist who lost his medical license in 2005 because of an addiction to the drug clonidine, according to state records. He had problems with the drug as long ago as 1994 when he was cited by the West Virginia Board of Medicine.

A former neighbor said Campano had a stream of creepy visitors to his apartment and often railed against the government.

The U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives says federal agents took 56-year-old Mark Campano into custody Wednesday after he was released from a hospital.

Campano, an anesthesiologist who lost his medical license in 2006, was taken to a hospital with injuries to his hand and arm.