A massive fire broke out at the SPS Technologies warehouse in Abington Township, Pennsylvania, around 9:35 p.m. Monday, with witnesses reporting an explosion.

All 60 employees were evacuated safely, and no injuries were reported.

Firefighters battled the blaze overnight, and as of Tuesday morning, it was still smoldering but contained, NBC 10 Philadelphia has reported.

Authorities urged residents to avoid the area.

Written by B.C. Begley