Mechanical failure appears to have been the cause of an accident yesterday evening in Jalisco that killed 15 people traveling home from a pilgrimage. Another 36 people were injured when the bus in which they were traveling left the road and rolled over in Atotonilco el Alto. The accident occurred at 6:30pm on state highway 307 between Arandas and Atotonilco. All the passengers were from the community of La Rivera in Ayotlan and were returning home from a trip to Our Lady of San Juan de los Lagos. A local Red Cross director said special equipment had to be used to free some of the victims from the wreckage.