Lola Sheen, Brooke Mueller, Charlie Sheen and Sam Sheen

Charlie Sheen and ex-wife Denise Richards' two daughters are uninjured and doing "fine" after being in a four-car collision on Friday afternoon, People reports.

"Charlie told me that the girls are fine," Sheen's rep, Stan Rosenfield, said. "He said it could have been much worse. They were in their car seats, and he is extremely grateful for the safety features from Mercedes."

Sam, 4, and Lola, 3, were riding in an SUV driven by their nanny in Malibu when a Honda Civic cut them off, causing the four-car accident, according to Sgt. Evans of the L.A. Sheriff's Department.

Only the driver of the Honda was injured, Sgt. Evans said.