1.   Sirens howl and fires and explosions light the sky as we claw our way out from under the wreckage.

2.   Air raid sirens howled today and Zagreb residents, skittish after two straight days of Serb rocket attacks, rushed for shelters.

3.   Around the periphery of the square, dozens of police cars were drawn up, lights flashing and sirens howling in a show of presence.

4.   Dozens of police cars surrounded the protesters on central Skanderbeg Square, lights flashing and sirens howling.

5.   Griebel was at home with his family when the air raid sirens howled.

6.   Serb rebels began surrendering Thursday to the Croatian army, and air raid sirens howl in Zagreb.

7.   Sirens howled.