A 65-year-old retired teacher died early Wednesday, the result of head injuries suffered when riot police cleared away protesters who tried blocking access to the airport in the resort city of Acapulco the previous day. Guerrero Gov. Rogelio Ortega Martinez lamented the death of Claudio Castillo Pena in a statement released by the state. He called for dialogue and said the government had been as tolerant of the protests as possible, but had reached a limit. On Tuesday, protesters drove a bus into police lines in the Pacific coast resort city, injuring at least seven officers, Mexican federal officials said. The Interior Department said five protesters also were injured in the confrontation Tuesday evening, which came after thousands of protesters tried to block entrances to the Acapulco airport, prompting police to ferry tourists to the terminal in trucks.