The family of a Kansas woman who fell to her death from a party bus is suing the operators of the bus.

The family of 26-year-old Jamie Frecks filed the wrongful death lawsuit Tuesday against Midnight Express, the company’s three operators and the driver of the bus. The lawsuit was filed on behalf of Frecks’ infant daughter. A second lawsuit was filed on behalf of Frecks’ estate.

Frecks fell from the bus when doors suddenly opened. She was hit by at least three vehicles on May 4 on Interstate 35 in Kansas City, Kan.

An attorney for the bus operators said they would have no comment on the lawsuits.