LOGAN TOWNSHIP, N.J. – An employee at a UPS facility that is the scene of a reported active shooter situation in New Jersey says he heard an apparent gunshot and began to run.

Allen Anthony Dowling tells The Associated Press he heard a fellow worker say someone had a gun. Dowling says he then heard what he thought was a gunshot and began to run along with other employees.

Police surrounded an area around a loading dock at the supply chain processing facility in Logan Township, about 32 kilometres south of Philadelphia.

Local and county authorities have responded to an incident in Logan Township, Gloucester County. Media inquiries should be directed to those entities. #alert

— NJSP – State Police (@NJSP) January 14, 2019

Television news footage showed armed officers crouching behind one of the vehicles.

In a statement, UPS says it’s working with law enforcement on an active shooter situation, but did not provide details or identify if any employees were involved.

Schools in the area were put on a modified lockdown.