Bosnian Serbs released 11 French aid workers seized April on charges they were smuggling arms to the Muslims. Though the French government had demanded the unconditional release the captives, their humanitarian group paid $44,000 in "bail."

Plans to test a Bosnian Serb cease-fire pledge at the TUZLA airport were canceled when civilian pilots refused to risk making supply flights. U.N. flights were suspended Tuesday when Serb shells struck the airport shortly after a plane landed.

A mortar shell landed near the SARAJEVO airport, a clear violation of a 3-month-old local cease-fire and a NATO ban on heavy weapons around the city. But a U.N. spokesman said it wasn't known who had fired the shot.