Two American F-14 jet fighters from the aircraft carrier Dwight D. Eisenhower collided over the eastern Mediterranean Sea, and an aviator was killed, the Navy said. One of the planes crashed into the sea. Its two crew members ejected, but one was killed, the Navy said. The second flier suffered "a serious injury to his leg," according to a statement released in Washington. The two crew members from the second aircraft apparently were unhurt and they returned safely to the deck of the carrier. The fliers' identities were not available, pending notification of next of kin. The crash is under investigation.