Four Los Angeles police officers were injured on Saturday, one of them critically, when a 64 year-old woman who may have been asleep at the wheel struck their cruisers, police said.

The 2:20 a.m. crash in the city's Woodland Hills suburb occurred as the officers responded to a fight at a loud party, said police spokeswoman Officer Norma Eisenman.

A 64 year-old driver at the wheel of a Jaguar struck two parked police cruisers, in a chain reaction crash that injured the four officers, who were standing outside their vehicles and were struck by them, Eisenman said.

The woman driver and all four officers were hospitalized. One officer remains in critical condition with broken ribs and other injuries, Eisenman said.

Two officers and the woman driver were released from the hospital with minor injuries, police said.

Initial indications were that the woman who struck the cruisers was asleep at the wheel, but the investigation continues, police said. The driver was not immediately arrested.