Hope for downed US pilot

US officials have been receiving signals that could be coming from the pilot of the US Air Force F-16C that was shot down over Bosnia on Friday, a senior Pentagon official said last night.

"The signals alone aren't enough for us to conclude that the pilot is alive, but it is encouraging," the official said. "We are doing our utmost to locate these signals." He said the pattern of signals indicated a deliberate attempt to communicate.