1.   A strict blackout was imposed in Pyongyang, and the populace was crowded into underground shelters as air raid sirens wailed.

2.   Before the air attacks, Israel told its tens of thousands of residents south of the Lebanese frontiers to stay in underground shelters.

3.   Five years ago, the Nelsens filled in an underground shelter on their property because it frequently flooded with rainwater.

4.   Hasiba Cesko said she and her children survived the bombardments in an underground shelter.

5.   National Weather Service meteorologist Larry Eblen said the safest option in such a tornado would have been to seek safety in an underground shelter.

6.   The company struggles to keep enough workers on hand to meet the demand for underground shelters, co-owner Jim Harvey said.

7.   The elevator, a platform with a cage, would be stored in an underground shelter.

8.   The leftover from the communist era also includes underground shelters which can house thousands of soldiers at a time.

9.   To all appearances, the dangers that had kept them in underground shelters were forgotten.

10.   Three million terrified and hungry Berliners huddle in cellars and underground shelters as Soviet artillery and tanks pound the beleaguered city.