What started out as a standard shoplifting incident at Gander Mountain in Johnson City, turned into a police investigation resulting in a major weapons bust and thousands of rounds of ammunition, according to reports.

The Broome County District Attorney's office charged Johnson City resident Ramadan Abdullah on Wednesday with the following:

Four counts, criminal possession of a weapon, second degree, class C felony

Criminal possession of a weapon, third degree, class D felony

Criminal possession of stolen property, fifth degree, class A misdemeanor

On May 31, the security alarm at Gander Mountain caused Johnson City police to investigate a shoplifting incident, according to the Press & Sun Bulletin. Although no one saw Abdullah steal anything, he was found with suspected stolen ammunition, according to police.

MASSIVE WEAPONS BUST Exemplary work by JCPD Patrol Officers that responded to investigate what they thought was a... Posted by Johnson City Police Department, NY on Wednesday, June 14, 2017

Police arrested Abdullah, 64, and they became suspicious after asking specific questions about the ammunition he had stolen, said Johnson City Police Chief Brent Dodge, according to WBNG.

Police obtained a search warrant and by June 2, they seized more than a dozen weapons and thousands of rounds of ammunition from a storage unit authorities say Abdullah was renting in the Town of Union.

The following items were recovered:

Four loaded handguns

Eight assault weapons

64 high-capacity ammunition feeding devices

One loaded shotgun

Two rifles

From the storage unit, police also recovered thousands of rounds of ammunition for rifles, pistols and assault weapons including 50 caliber armor piercing incendiary rounds, numerous firearm parts and flak jackets.

Subsequent search warrants at Abdullah's home and another residence in Oneonta resulted in an additional loaded firearm, numerous rounds of .38 caliber ammunition and high capacity ammunition feeding devices with additional ammunition.

Police say family members at both residences cooperated with police, but authorities did not comment on whether or not family members knew about Abdullah's collection of weapons and ammo.

If convicted, Abdullah could spend up to 15 years in prison. He remains held in the Broome County jail.

Abdullah is a United States citizen and investigators believe he has previously traveled overseas, according to reports.

None of the firearms were registered to Abdullah.