MTV Star in Coma After Truck Collision

3/3/2010 5:49 PM PST

MTV Star in Coma After Truck Collision

The stars of MTV's "A Double Shot at Love" were involved in a major car crash yesterday that left one girl in a medically induced coma.

We're told Erica "Rikki" Mongeon and Victoria "Vikki" Mongeon were passengers in a VW Jetta traveling through Bakersfield, CA at around 12:20 AM Tuesday when their car collided with a semi-truck.

We're told Vikki and the Jetta driver were not seriously injured -- but Rikki was rushed to the intensive care unit at a local hospital.

According to girls' manager, Rikki is now in a medically induced coma -- but we're told doctors are optimistic about Rikki's recovery.