Deadly Gas Explosions Near Boston Put Focus on Pipe Safety

Federal investigators were dispatched to three towns just outside Boston after dozens of explosions and fires along NiSource Inc.’s natural gas network left at least one person dead and 13 injured and displaced over 8,000 customers.

Massachusetts State Police reported 39 incidents on the network in Lawrence, Andover, and North Andover Sept. 13. The blasts appear to be pipeline explosions, the National Transportation Safety Board said in a briefing Sept. 14.

NTSB Chairman Robert Sumwalt told reporters in Washington the agency sent a “go-team” of investigators that will arrive in the affected area at about noon local time ...