OAKLAND (KRON) — A massive 4-alarm fire at a construction site in Oakland Friday morning is now under control, according to fire officials.

The fire broke out around 4:30 a.m. at 23rd and Valdez streets, just two blocks away from the Grand Ave. side of Lake Merritt.

The construction site was a huge project that was supposed to hold 200 apartments and 31,000 square feet of retail space.

The fire started as a two-alarm and quickly turned into a four-alarm.

By 5:45 a.m. a significant part of the building collapsed.

Several agencies are still working together on the fire, which was reported ‘under control’ just after 8:00 a.m.

While the fire is about 85% contained, stubborn hot spots and small active flames are still present, according to fire officials.

About 80 firefighters from Alameda County Fire, Berkeley Fire Department, Albany Fire Department, and Alameda Fire Department are all on scene helping put out the remaining flames and hot spots.

The Red Cross is also springing into action. They have an evacuation center open at the Oakland Cathedral at 2121 Harrison St. for those forced out of their homes.

About 100 people are at the center.

An unstable construction crane is also responsible for many of the evacuations, officials said.

Heat from the fire was causing the crane to spin around in circles over the site, forcing crews to back away.

Everyone within a three-block radius of the crane was evacuated, according to officials.

The fire has also forced the YMCA located at 2350 Broadway to close due to the poor air quality from all the smoke.

Officials say they will reopen when the air quality improves.

The fire appears to be “suspicious” and the cause is under investigation, according to fire officials.

Arson investigators are on scene.

No deaths or injuries were reported.

Stay with KRON4 online and on air for updates.

The space is completely engulfed in flames

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