1.   Israel also tightened the siege around Palestinian areas.

2.   The siege had been tightened because intelligence reports said that a Palestinian cell in the town was planning car-bomb attacks in Jerusalem.

3.   In recent weeks the Taliban army has been tightening its siege on the government.

4.   Israeli security forces on Tuesday tightened their siege of a West Bank village after they reportedly identified the Islamic militants who carried out two Jerusalem suicide bombings.

5.   On Tuesday, Israeli troops tightened their siege of one West Bank village, with dozens of soldiers taking up position around the village.

6.   On Tuesday, Israeli troops tightened their siege of one West Bank village, with dozens of soldiers taking up positions around the village.

7.   Serbs, who have crippled the U.N. airlift to Sarajevo and tightened their siege in other ways, continue clamping down.

8.   Serbs, who have crippled the U.N. airlift to Sarajevo and tightened their siege in other ways, continue turning the screw.

9.   The Serbs have tightened their siege of Sarajevo and resumed shelling of the capital in recent weeks.

10.   Thousands of soldiers backed by tanks and armoured cars Friday tightened a siege on the Tamil rebel bastion of Jaffna, the military said.