A fire tore through a Burlington, Ont., factory early Thursday morning, engulfing the building in flames.

Fire crews were alerted to the blaze on Zelco Drive, near Appleby Line and the Queen Elizabeth Way, just after 5:20 a.m.

According to the Burlington FireDepartment, the majority of the factory was engulfed in flamesand nine fire units were sent to the scene.

There were no immediate reports of injuries.