21.   Security forces sealed the city of Jacobabad, turning back all outsiders, to secure the air base.

22.   Security forces quickly sealed off the El Biar area in the hills above the port city, and ambulances raced to the scene.

23.   The forces sealed off Jaffna two days ago and have been advancing slowly into the city.

24.   The Interior Ministry statement said security forces sealed off Qena Province and launched a search on northbound roads.

25.   A witness said dozens of ambulances rushed to the scene and security forces sealed off the area.

26.   During the clashes, security forces sealed off the area to traffic.

27.   The Russian military declared this week that its forces had completely sealed off the city, preventing Chechen secessionist rebels from entering or leaving.

28.   Security forces also sealed off streets leading to government buildings and prevented vehicles from entering Gaza City.

29.   Security forces sealed off police headquarters here Friday as opposition leader Megawati Sukarnoputri was due to arrive for questioning.

30.   Security forces sealed the area and stopped residents from moving around, effectively imposing a curfew.