Firefighter dies at Watertown, Massachusetts house fire

BREAKING: Firefighter dead after battling 2-alarm blaze in Watertown https://t.co/gY5Mxf98eo pic.twitter.com/YHco0DQsbn

— NBC10 Boston (@NBC10Boston) March 17, 2017

WHDH-TV:

Officials said a firefighter died Friday morning while battling a two-alarm blaze at a home in Watertown.

The fire broke out just before 10:30 a.m. at a single-family home on Merrifield Ave. Crews were greeted by heavy flames on the second floor when they arrived.

Police said the firefighter collapsed at the home. Crews performed CPR before he was rushed to Mt. Auburn Hospital, where he was pronounced dead. His cause of death is not clear.

“This is the most difficult day for firefighters,” fire chief Mario A. Orangio said. “This is a tremendous blow to this department.”