A Worcester firefighter has died in an early-morning fire inside an apartment building on Lowell Street in Worcester this morning.

Sources confirm to MassLive the firefighter died from his injuries while battling the blaze. Firefighters are still at the scene of 5-7 Lowell St. as of 8 a.m.

A source tells MassLive that two firefighters were initially trapped on the second floor. It took approximately 45 mins to free one of the firefighters who was pronounced dead at the hospital.

The street remains closed.

There are no reports of any injuries to residents. People living inside the building reported hearing fire alarms and rushing outside, some just in their socks, to escape.

Worcester police and investigators from the state fire marshal's office are at the scene.

Yesterday was the anniversary of the death of Worcester firefighter Jon D. Davies Sr., who died fighting an apartment fire in Worcester on Dec. 8, 2011. Dec. 3 was the anniversary of the Worcester Cold Storage Fire, which claimed the lives of six Worcester firefighters and drew national attention.

This is a breaking news story and will be updated as more information is available.