This was very sad to hear about this.
They have been so many explosion in MA.
People worked very hard in trying to save them.
Here is some news from there

BARNSTABLE, Mass. -- Cape Cod fire officials were trying to determine what caused a blaze at a West Barnstable veterinary hospital Monday night that roared through the facility, killing several pets.

Two cats died and one dog was still missing Tuesday, but as many as a dozen other dogs were rescued when the husband and wife veterinarians who live on the Cape Cod Animal Hospital property noticed a brown out about 8:15 p.m. and then heard a blast.

The fire broke out minutes later.

"We went up the hallway and just started opening runs and just got them out as fast as we could," veterinarian Scott Munson said.

He said they weren't sure what had happened.

"We were sitting in the kitchen. We heard the explosion and we looked outside, thought maybe it was a lightning bolt and no lightning, so I looked out the front door and that's when we saw the fire at the corner," Munson said.

They called 911 and firefighters arrived almost immediately. They said they were surprised so many animals survived.

Neighbors arrived to try to help the firefighters.

"You know when I heard that animals had died and I thought it was amazing that the veterinarians had risked their life, and the staffers ... that's one of the things you see with animal people, is that they'll risk their lives for the animals," Juli Sanborn of the Cape Cod MSPCA said.

Neighbors said they felt the explosion.

"It felt like a sonic boom. You know, so, and that's what it was, like a rattling of the house," David Leach said.

"The flames started shooting really high, almost higher than the trees," his son Chris Leach said.

Fire officials were investigating the possibility that natural gas caused the explosion.

"There was natural gas into the building. We're looking at that. The investigators will be sifting through the debris this morning," Fire Chief John Farrington said.

There were no reports of injuries to people, but one dog -- a puggle named "Dutch" -- was still missing Thursday.

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Fire Chief John Farrington said a few animals were missing from the building in Barnstable, which is located about 5 miles north of the Kennedy family compound in Hyannis Port, but most had been located by dawn.

The main building was almost destroyed.

National Grid and the state fire marshal were at the scene investigating whether the fire was caused by a natural gas explosion. Firefighters said the hospital blast came 20 minutes after area residents reported their lights had dimmed.

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