WORCESTER (CBS) — The death of a firefighter on Sunday was the latest December tragedy for the Worcester Fire Department.

“Once again, December has proven to the cruelest month of the year for the Worcester Fire Department,” said Worcester Mayor Joesph Petty Sunday morning.

The statement came at the official announcement of firefighter Christopher Roy’s death.

Roy was one of two firefighters who became trapped while working to put out a fire on Lowell Street around 4 a.m. Sunday.

Christopher Roy (Photo Courtesy: City Of Worcester)

The other firefighter is in stable condition.

His death comes one day after the death anniversary of firefighter Jon Davies, who was killed by a fire on Arlington Street in 2011.

“This is a difficult day for the Worcester Fire Department and particularly painfully as this is the week we remember and mourn the passing of Worcester firefighter Jon Davies and the six who passed in the cold storage warehouse fire,” said Worcester Fire Chief John Lavoie.

On Dec. 3, 1999, Lt. Thomas Spencer, Lt. Timothy Jackson Sr., Lt. James Lyons III, and firefighters Jeremiah Lucey, Paul Brotherton and Joseph McGuirk died after becoming trapped in the fire.