At least one person was killed and 10 injured in a series of gas explosions and related fires in three Massachusetts town on Thursday, September 13.

Massachusetts State Police warned of at least 70 gas-related explosions, structure fires, and leaks across Lawrence, Andover and North Andover, in Merrimack Valley, on September 13.

Police announced that “Residents in the affected towns of Lawrence/North Andover/Andover who have gas service from Columbia Gas should evacuate their homes immediately if they have not already done so.”

Local media, quoting Lawrence Mayor Daniel Rivera, said that “over-pressured gas valves” were the cause of the explosions.

This video, shared on September 13, shows evacuating residents stuck in traffic jams in Lawrence. Credit: Will S via Storyful