PHILADELPHIA (CBS) – There will be no classes all week at a West Philadelphia elementary school after fire gutted the building on Sunday.

The five-alarm fire ripped through the Global Leadership Academy Charter School in the 5100 block of Warren Street in the city’s Parkside section. Crews arrived on the scene just before 6:00 a.m. after a police officer noticed flames coming from the building.

READ MORE: Philadelphia Judge Hears Arguments In Mysterious Fatal Stabbing Case of Ellen Greenberg

Investigators believe the fire started in a section of the basement that was under construction. The flames quickly spread and caused one section of the four-story building to collapse.

There were no reported injuries.

READ MORE: School Bus Involved In Crash In Pittsgrove, Salem County

Officials said the building is a total loss. The Philadelphia School District is offering the site of the former W.S. Peirce School as the charter school’s temporary location.

The cause of the fire remains under investigation.

MORE NEWS: Fourth Stimulus Check: Is Another Relief Payment Coming Soon?

Reported By Suzanne Monaghan, KYW Newsradio; Jericka Duncan, CBS 3