Mexico's Pemex evacuates hospital unit after suspected arson MEXICO CITY (Reuters) - Mexico's state-owned Pemex oil monopoly evacuated a unit of its Cadereyta hospital in the eastern state of Nuevo Leon after an arson attempt that did not cause injuries, the company said on Saturday night. The incident, described in a tweet from Pemex, came just weeks after an explosion in Pemex's Mexico City headquarters killed at least 37 people. Authorities have said the blast was likely caused by a gas leak, but they are still investigating. Reporting by Alexandra Alper; Editing by Peter Cooney