(CNN) - A Maine fire chief has died while attending the public memorial service for a firefighter who died in a four-alarm blaze earlier this month.
A statement from Oxford Fire & Rescue said Chief Gary Sacco, 63, suffered an "unknown medical problem" Sunday and was rushed to Maine Medical Center in Portland.
The service was for Berwick Fire Capt. Joel Barnes, 32, who died on March 1. According to CNN affiliate WMTW, Barnes was battling an apartment fire.
Sacco had been the chief in Oxford for two years.
"Chief Sacco was a consummate professional," his department said. "Not only did he love the job, he had a passion for the fire service like no other. Chief Sacco was a respected leader, mentor, and positive role model. Chief Sacco was well liked by all members of the department and the community."
Gov. Janet Mills tweeted Sunday: "Our hearts, already broken by the loss of Captain Joel Barnes, also mourn the loss of Oxford Fire Chief Gary Sacco."
"In a testament to his own character, Chief Sacco lost his life while honoring that of his fallen brother," she said in a tweet. "I join with people across Maine in offering my thoughts and prayers to Chief Sacco's family and friends, the Oxford Fire Department, and all of Maine's first responders.
"The state of Maine has given two of its best to the Heavens."
She said in a tweet last week that Barnes died trying to save a fellow firefighter.
- Trump attacks whistleblower in now-removed tweetstorm
- President Trump: ISIS leader Abu Bakr al-Baghdadi is dead
- South African cyclist injured in scuffle with park rangers
- Elon Musk says Las Vegas tunnel hopefully will be operating by 2020
- At least 5 people died in small plane crash near Louisiana airport
- Thai Navy SEAL dies from infection he contracted during cave rescue
- Federal judge denies bid to undo Georgia voter purge
- Trans activist killed in Toronto