21.   Air raid sirens blared over Seoul on Tuesday in a routine civil defense drill amid fears of a possible missile test by communist North Korea.

22.   Air raid sirens blared Wednesday night over Belgrade for the first time since World War II, sending panicked residents homes to seek cover from war.

23.   Air raid sirens blared Wednesday night over Belgrade for the first time since World War II, sending panicked residents home to seek cover.

24.   Air raid sirens blared briefly in the Yugoslav capital, Belgrade, but there were no immediate reports of explosions.

25.   Ambulances and police cars, sirens blaring, rushed to the area.

26.   Ambulances raced to the area, sirens blaring.

27.   Ambulances raced through the city, sirens blaring.

28.   Ambulances raced to the scene, sirens blaring.

29.   Anti-aircraft fire and tracer bullets lit the sky over the city, air-raid sirens blared, and the thud of explosions could be felt in downtown buildings.

30.   Civil defense sirens blared downtown warning of an emergency.