(AP) — The Kansas Highway Patrol has impounded three of the vehicles suspected of striking a woman who died after falling from a party bus.

The Kansas City Star reports that 26-year-old Jamie Frecks died this weekend after tumbling onto Interstate 35 in Kansas City, Kan. Patrol spokesman Howard Dickinson says it’s likely that there were more than three vehicles that struck Frecks. The initial report suggested three hits.

Troopers also have obtained warrants allowing them to conduct a full safety inspection on the 1999 Ford shuttle bus. The bus company’s website said it had been outfitted as a party bus with stereo, a cooler storage area and dance pole.