1.   Police set up roadblocks in some areas, and stepped up security at Bogota airports.

2.   Police set up roadblocks throughout the region and were combing the area for the fugitives.

3.   In the hunt for escapees, police set up roadblocks and sent trackers into the jungle behind the center, where rioters had broken down barbed-wire fences.

4.   It is dismaying to hear from the police that some nightspot owners are helping to tip-off their patrons on avoiding police roadblocks.

5.   On Sunday night, police set up roadblocks outside Tel Aviv and Jerusalem and were stopping suspicious cars, causing traffic jams.

6.   Police erected roadblocks around the village and detained at least three reporters who tried to reach the area.

7.   Police manned roadblocks on highways into the capital and patrolled downtown.

8.   Police set up roadblocks and searched for the attackers.

9.   Police set up roadblocks to intercept the van, but were not immediately able to track down the robbers.

10.   Police set up roadblocks and launched a manhunt in and around the sprawling West Jerusalem campus, which is close to parliament.