11.   According to radio reports monitored here, the authorities of Gabon sealed off the area where the outbreak occurred.

12.   All approaches to the bridge were sealed off Saturday night by policemen and special antiterorist units.

13.   All five fire engines reserved for saving houses were forced to pull out minutes before flames sealed off their only escape route.

14.   But information received on an attack reported to have been planned from the city left no choice but to keep it sealed off, Ben-Eliezer said.

15.   By sealing off separate software programs, OS X allows one program to crash without harming other programs that happen to be running on the computer at the time.

16.   But, after studying the problems with the doors slamming shut and sealing off evacuation routes, they have been unable to agree on a solution.

17.   His papers show that long after the Nazis sealed off the ghetto, he continued to meet with youth organizations.

18.   In a few places, the corridors abruptly end in sheer walls of twisted debris, where several stories of the building overhead buckled and sealed off escape.

19.   In the hours after the shooting, those same residents stood watching in the cold as two dozen police officers sealed off the scene with yellow tape.

20.   In the hours after the shootings, those same residents stood watching in the cold as two dozen police officers sealed off the scene with yellow tape.