High-priority alert based on source significance and keyword relevance.
Context
What happened: A French Mirage 2000D fighter jet crashed in eastern France late Tuesday evening while returning from a mission, killing at least one person.
Key numbers: At least one person dead. One body recovered. Two crew members were aboard. Crash occurred late Tuesday evening.
Why it matters: One crew member remains missing and a search is ongoing. The armed forces ministry has opened an investigation into the cause of the crash.