21.   Troops began patrolling Dhaka, the capital, and the southwestern port of Chittagong, and were building sandbag bunkers in the streets.

22.   Troops began patrolling Dhaka, the capital, and the southwestern port of Chittagong, and were building sandbag bunkers on the streets.

23.   Troops guarding the capital have built bunkers and put up sandbags and barbed wire in the streets.

24.   Tuesday, Taliban spokesman Muttayn said the religious militia was pausing to build bunkers and take other measures to shore up defenses around Mazar-e-Sharif.

25.   Intermittent firing was continuing along other parts of the disputed border, police added, and local residents had been advised to build reinforced bunkers underground.

26.   Witnesses said gunmen dragged large concrete pipes across main roads in Orangi, dug trenches and built makeshift bunkers.

27.   Officials have said the group is armed and may have built a bunker.

28.   Officials say the group is armed and may have built a bunker.

29.   Residents here are concerned about reports that the militants have amassed gunpower and are building bunkers, which is reminiscent of other deadly sieges involving anti-government activists.