At least one person died and others were injured in the blasts in Andover, North Andover and Lawrence on Thursday.

All affected homes and buildings have been cleared of gas, Governor Charlie Baker said.

He said 8,600 gas meters in the area had been shut off and thanked residents for their patience.

Hundreds of people were evacuated on Thursday evening, with gas and electricity services cut to try and prevent further incidents.

A local fire chief described it as an "overwhelming event" that resembled "Armageddon".