A red flag warning is in effect for all of Connecticut Wednesday as a massive blaze has grown at Lamentation Mountain in Berlin and Meriden.

A large brush fire burning on Lamentation Mountain that resulted in the death of a firefighter now is believed to cover some 125 acres, as dry, windy conditions threaten to overwhelm a containment area first responders had established,

Gov. Ned Lamont directed U.S. and state flags in Connecticut lowered to half-staff in honor of a member of the Wethersfield Volunteer Fire Department and former member of the Hartford Fire Department who died in the line of duty while responding to a brush fire at Lamentation Mountain in Berlin on Tuesday.

Robert Sharkevich Sr. died in an UTV crash while responded to a brush fire on Lamentation Mountain in Connecticut on Tuesday evening, officials say.

A firefighter died in a utility task vehicle crash while responding to a brush fire in Berlin, Connecticut on Tuesday.

BERLIN, Conn. (WWLP) – Firefighters are working to contain a massive brush fire on Lamentation Mountain in Berlin, Connecticut. The fire started on Monday and has grown to about 25 to 40 acres in size. The Berlin Fire Department says it would probably be a two or three-day operation due to the terrain.

The National Weather Service said conditions in Massachusetts Thursday would be "favorable for wildfire spread."