A Palestinian was killed Sunday when a smuggling tunnel beneath the border between Egypt and the Gaza Strip collapsed. Egyptian police said the victim suffocated, while several other smugglers survived the accident. Using heavy machinery, Egyptian police recovered the man's body. The police official spoke on condition of anonymity as he was not authorized to speak to the press. Also Sunday, Egyptian police said they had discovered a cache containing about half-a-ton of arms in the northern Sinai Peninsula. Authorities said that among the weaponry were mines and various missiles.