12 dead after bus accident in northern Mexico

12 people died and 10 were injured after a bus carrying patients for treatment of chronic illnesses flipped in northern Mexico near the U.S. border on Tuesday.

The bus was being used by the Mexican Social Security Institute in the city of Matamoros, across the border from Brownsville, Texas.

The patients and their relatives were being transported to a hospital in the state of Nuevo Leon for treatment when the accident took place.

Pedro Granados Ramirez, the head of the Tamaulipas state civil defense office, said the accident took place after a curve near a border bridge in the city of Reynosa.

Nine people, including the driver of the bus, were pronounced dead at the scene. Other three succumbed to their injuries in the hospital.

The condition of the 10 injured varied from stable to serious.