When the maintenance director went in to investigate, the building exploded, he said.
Landry says that he doesn't know specifics of their injuries but that they were taken to hospitals with better-equipped trauma centers.
Landry tells our media partner, WMTW that the LEAP building was a few months old. At least six others were injured.
"Our hearts go out to all those impacted by this tragedy, especially to the loved ones of the firefighter lost and others injured", Mills said.
H. Scott Landry, a Farmington selectman and ME state representative, told the Bangor Daily News that five firefighters and LEAP's building maintenance manager were taken to a hospital.
Sen. Angus King also issued a statement, saying he is "devastated by the news of the serious explosion in Farmington", and that "my thoughts are with the first responders working at this moment, the family of the fallen firefighter, and the Franklin County community".
"My stepdad was first on scene after the explosion", he told CNN.
The Latest: 5 remain hospitalized after propane explosion | Fort Worth Star-Telegram
People inside the building smelled smoke shortly before the explosion and were able to evacuate in time, a town spokesperson said.
LEAP, which stands for Life Enrichment Advancing People, is a group that provides services for people with intellectual and developmental disabilities, according to its website. The explosion occurred after firefighters arrived.
The explosion closed down roads in Farmington, a town of about 7,700 people about 35 miles northwest of the state capital, Augusta.
Kim Hilton, who works in the admissions department at the nearby University of ME at Farmington, said there were scary moments when the blast occurred. Further details weren't immediately available.
Images from the scene show debris floating in the smoky air.
The Franklin County Sheriff's Department in ME responded to the situation and firefighters are working hard to prevent further damages.
We're Getting a Harvest Moon on Friday the 13th
The Harvest Moon got its name because farmers are able to work late into the night because of the moon's light. A song called " Shine On, Harvest Moon " was penned in 1908 by vaudeville stars Nora Bayes and Jack Norworth.
Mind-blowing ways on how to deal with lies
Most people tend to forget that they cohabit with other people that means you are living your life with other people in it. Same thing applies when it comes to sport bet , you need to dig deeper and find out if a sportsbook is legit or a scam.