Four Mexican tourists were killed and 17 were injured, two of them critically, in a bus accident on Friday in Egypt's Sinai Peninsula, the governor of South Sinai said. The tourists were travelling on a bus owned by a local tour company near Saint Catherine's monastery in central Sinai when their bus overturned and caught fire, medical and security sources said. At least 40 tourists, all from Mexico, were inside, the state news agency MENA reported. The injured tourists were transferred to three hospitals in the area, governor Khaled Fouda said. He said they had been traveling to the monastery, a popular tourist destination, from the town of Taba, which borders Israel.