GAZA (Reuters) - A Reuters cameraman was killed in the Gaza Strip on Wednesday in what appeared to have been an Israeli military strike. Fadel Shana, a 23-year-old Palestinian, was covering violence in the enclave for the international news agency. Two bystanders were also killed in an explosion after Shana stepped from his vehicle. His soundman escaped serious injury. Film from Shana's camera showed an Israeli tank stationed several hundred meters (yards) away firing a shell. The film then went blank, apparently at the moment Shana was hit. Earlier, local residents had said the explosion appeared to have been caused by an air strike. The Reuters vehicle, an unarmored sport utility vehicle bearing "TV" and "Press" markings, had just stopped and Shana got out to film, local residents said.