MOONACHIE, N.J. (PIX11) -- Three people were injured Monday afternoon after a massive explosion and fire at a New Jersey factory.

The explosion happened just after 4:30 p.m. at the Crest Foam factory on Carol Place in Moonachie. The fire reached four alarms.

Three people were injured -- two seriously -- in the blast, which involved a piece of machinery.

Hazmat crews rushed to the scene, fearing chemicals were involved, but that did not turn out to be the case.