There have been several gas explosion stories this week. One was in Pittsburgh on Monday:

"CENTER TOWNSHIP (KDKA) — A massive methane gas pipeline explosion rocked Beaver County early Monday, sending a huge fire ball into the sky and prompting the evacuation of more than two dozen homes."

pittsburgh.cbslocal.com/2018/09/10/center-township-gas-line-explosion-fire/amp/

"President Trump said that Lawrence, Massachusetts, and Boston are sanctuary cities that harbor drug traffickers responsible for a fentanyl epidemic in southern New Hampshire. City leaders say he is criminalizing immigrant communities."

efficientgov.com/blog/2018/03/20/lawrence-boston-mayors-address-trumps-comments-about-drug-trafficking-immigrants/

FBI already on scene in Lawrence according to Boston25.