Firefighters working an 8-alarm blaze in Roxbury are warning residents to keep their windows and doors shut as smoke blankets the area.

The fire broke out this morning at the trash transfer station on Gerard Street. Fire Commissioner Paul Burke quickly escalated the response to 8-alarms as firefighters attacked the blaze.

“Firefighters are attacking the fire from all sides using portable deck guns, ladder pipes and multiple large diameter hose lines,”  the department said in an update.

Approximately 150 firefighters are working at the scene, according to Boston fire officials.

Fire officials are also advising residents to keep their windows and doors shut a the smoke lingers in the heavy air.

“We remind the neighbors in the area to keep their doors and windows closed to keep the smoke out and avoid the area,” department said in a social media advisory.

— Developing