The Scranton Army Ammunition Plant started spewing black smoke shortly before 3pm local time. Local emergency services were summoned to deal with what was described as a “structure fire.”

No further details were available. 

The Joint Munitions Command (JMC) facility is owned by the US military but operated by General Dynamics-Ordnance and Tactical Systems. It makes 155mm and 105mm artillery projectiles, 120mm mortar rounds, 203mm naval shells, as well as a variety of smoke, illumination and incendiary rounds.

The US has been trying to ramp up production of artillery ammunition to supply Ukraine for its conflict with Russia. 

Scranton is a community of about 75,000 residents in northeastern Pennsylvania. It is the birthplace of US President Joe Biden. He is scheduled to visit the town on Tuesday.