SAEGERTOWN, Pa. — Several people were hurt in a fire and explosion at a manufacturing plant near Erie in Northern Pennsylvania.

In a press conference, Saegertown Fire Chief BJ Fleischer said firefighters were sent to Parker LORD Corporation’s facility in Saegertown just after 10:30 a.m. when an automatic fire alarm went off at the plant. This facility is located about an hour and a half from Pittsburgh.

Firefighters were met with heavy smoke upon arrival and shortly thereafter there was an explosion.

Chuck Lawrence with Saegertown Borough Emergency Management said 13 firefighters and plant personnel were sent to area hospitals with minor injuries or out of precaution for evaluation. A spokesperson for LORD Corporation said four employees were taken to hospitals out of precaution for evaluation.