(Dubuque, Iowa) – Two people died following a crash Thursday afternoon south of Dubuque. The Iowa State Patrol says the accident happened at around 1-p.m. at the intersection of Skyline Road and U-S Highway 15, when the driver of an SUV failed to obey a stop sign and yield the right-of-way to a semi tractor-trailer before the SUV was struck by the semi.

The driver of the SUV died at the scene. A passenger in the vehicle was transported by ambulance to a local hospital and later flown by helicopter to the University of Iowa Hospital and Clinics, where they later died from their injuries. The driver of the semi was not injured.

The names of the victims were being withheld by the State Patrol pending notification of family.