IRVINE (CBSLA) — Three people were killed and a fourth injured early Friday after a car slammed into a tree in Irvine and caught fire.

The crash happened at about 1:45 a.m. in the intersection of Harvard Avenue and University Drive, not far from UC Irvine. Firefighters and police officers responding to the crash found the red Mercedes on fire.

When officers arrived, they found three people dead inside the vehicle. A fourth person was taken to a hospital in unknown condition.

The identities of the three victims were withheld until their families are notified.

Four young men were riding in the Mercedes, which was totaled in the crash.

Irvine police shut down Harvard between Michelson and University in both directions until at least noon.

Anyone with information about the crash can contact Irvine Police Detective Chris Ostrowski at (949) 724-7047 or email [email protected].