An early-morning traffic collision in Irvine on Saturday left two women dead and a man critically injured.

At about 2:20 a.m., police and fire crews responded to a single-vehicle crash on northbound Jamboree Road, between Main Street and Kelvin Avenue, said Kim Mohr, an Irvine police spokeswoman.

Two women in a Chevrolet Corvette were pronounced dead at the scene, while a male occupant was taken to a hospital in critical condition, she said.

The women have been identified as Jamie R. Lopez, 26, of Santa Ana, and Nancy A. Ortiz, 26, of Garden Grove, Mohr said.

A fire hydrant that had been sheared off as a result of the collision was turned off, she said.

The cause of the crash is under investigation.

Jamboree has been closed in both directions between Main and Kelvin as police go over the scene, police said.

Police are asking anyone with information about the crash to contact Irvine police Det. Jonathan Cherney at 949-724-7024 or jcherney@cityofirvine.org.