BINGHAMTON (AP) - State police say a 50-year-old man had homemade explosives and tens of thousands of rounds of ammunition along with the marijuana plants he was growing inside his upstate New York home.

Authorities say a state police task force and local police executed a search warrant Tuesday at the Binghamton home of John Hamilton. Police say inside the house they found 13 marijuana plants along with pot-growing equipment.

Troopers say Hamilton also had three assault rifles, 13 homemade explosive devices, 14 military-grade smoke and riot grenades, and illegal knives. Police say he also had 18 other long guns and more than 45,000 rounds of ammunition.