California Governor Gavin Newsom declared a state of emergency as firefighters continue battling a fire at a cold-storage facility in Los Angeles that has raised air quality and health concerns.

Smoke concerns are growing as firefighters continue battling a massive cold storage warehouse fire in Boyle Heights that officials say remains highly complex.

“The smell of smoke has reached most of the city,” the Los Angeles Fire Department said in a statement as efforts to extinguish the blaze continued.