Fourteen college students on a camping trip were killed and dozens injured yesterday when their bus slammed into an electricity post in a mountainous area of the Philippines, police said. The bus was taking more than 50 teenage students and an instructor on the trip when the driver lost control on a downhill slope in the town of Tanay. Almost 40 others, including the bus driver, were injured in the accident. The cause of the accident was still undetermined, police said.