The crash injured 11 riders, including at least one person who was hospitalized in critical condition and expected to survive, said Officer Jacquelyn Abad.

The car turned from a blind corner and hit riders who had stopped in a traffic lane to wait for others to catch up, said Sgt. David Krumer, the LAPD's bicycle liaison.

There were no skid marks so it was difficult to determine how fast the car was moving, Krumer said.

He could not confirm reports that a streetlight in the area was out.

"It appears that they were stopped in traffic" and some who had dismounted to chat with friends technically were pedestrians, Krumer said.

Bicyclists have a legal right to use the right traffic lane unless they impede traffic, and pedestrians are barred from traffic lanes, Krumer said. Violators potentially could be cited, he added.

However, drivers have a legal responsibility to exercise caution regardless of the circumstances, Krumer said.