1.   He also said the current crowding was partly a result of bad weather, which has prevented the evacuation of patients further to the rear.

2.   The key Zairian airport in the rebel region has been virtually closed to them, preventing their evacuation to Rwanda.

3.   They prevented evacuation.

4.   Aircraft maker Boeing said it will not retrofit any of its planes because it worries the bars could prevent evacuation of the cockpit in an emergency.

5.   Fighting had prevented their evacuation, planned since November, from being carried out earlier, said Robyn Thompson, a Red Cross spokesman in Zagreb.

6.   Fighting had prevented their evacuation, planned since November, from being carried out earlier.

7.   He bled to death in a central Philippine jungle as bad weather prevented his evacuation by helicopter.

8.   Shellfire and rockets trapped hundreds of families in their homes Friday and prevented the evacuation of dozens of wounded, witnesses said.

9.   Shellfire and rockets trap families in their homes and prevent the evacuation of wounded, witnesses say.

10.   Settlers, she said, would maintain a large presence to prevent any evacuation.