Survivors and families of the victims of a deadly train crash in southern Mexico are demanding answers as the government vows to investigate what caused a train to derail on a rail line connecting the Pacific Ocean with the Gulf of Mexico.

Colorado hired Fernando Lovo away from New Mexico to succeed Rick George as athletic director, the school announced Monday. CU Chancellor Justin Schwartz said Lovo's hiring was approved by a unanimous vote of the Board of Regents and that Lovo would official start his new job Thursday.