LOS ANGELES, Calif. – A family who suffered serious injuries in a fatal traffic collision involving Caitlyn Jenner earlier this year sued the Olympic gold medallist on Friday.

The Wolf-Milesi family of Malibu sued Jenner in Los Angeles Superior Court for negligence in the February crash, which killed one woman after Jenner rear-ended her car and pushed it into oncoming traffic on the Pacific Coast Highway.

A sport utility vehicle driven by Peter Wolf-Milesi family struck a car driven by Kim Howe, killing her. The lawsuit states the four members of the Wolf-Milesi family and another occupant of their vehicle sustained serious injuries in the crash.

Peter Wolf-Milesi suffered serious wrist injuries and his one-month old son was unresponsive after the accident, according to the lawsuit. Wolf-Milesi’s wife also sustained blunt-force injuries and requires ongoing treatment, the suit states.

“The emotional effects of being involved in a collision that has taken the life of another has caused tremendous distress and suffering for the Wolf-Milesi family,” the suit states.

Jenner’s publicist Alan Nierob declined comment Friday.

Sheriff’s investigators determined Jenner was travelling at an unsafe speed for the traffic conditions. Prosecutors declined to file a vehicular manslaughter charge against the 66-year-old Jenner, who was born as Bruce Jenner.

The accident occurred before Jenner announced she is transgender and transitioned into her new identity as Caitlyn.

After the accident, Jenner released a statement expressing sympathy to those involved in the accident.

“It is a devastating tragedy,” the statement read. “I cannot pretend to imagine what this family is going through at this time. I am praying for them.”

Jenner is also facing separate lawsuits by Howe’s stepchildren and the driver of the other car involved in the collision.