SACRAMENTO (CBS13) – At least one person is dead and several others left without a place to live after an apartment fire in Sacramento.

According to Sacramento Fire Department, the fire started around 1:45 a.m. Thursday on Altos Avenue, near Eleanor Avenue.

Upon their arrival, firefighters reported seeing flames coming from one unit in a four-unit apartment complex.

Four people were transported to local hospital hospitals for their injuries. Some of the people transported may have life-threatening injuries, firefighters say.

The cause of the fire is under investigation.