31.   Thousands have fled over the past year and thousands more are expected to flee.

32.   U.S. officials have said in recent months that Tehran had failed to move decisively against al-Qaida figures who fled over the western border of Afghanistan to Iran.

33.   But bin Laden himself is still at large along with possibly hundreds of his followers who fled over the mountains towards Pakistan.

34.   But hundreds of al-Qaeda members are thought to have fled over mountain passes.

35.   But hundreds of al-Qaeda fled over mountain passes.

36.   Thousands of people have also fled over the border to seek protection in northern Iraq.

37.   Lava from the volcano swept through Goma, prompting hundreds of thousands of people to flee over the border to Gisenyi.

38.   Since the fall of Sulaymaniyah on Monday, thousands of Iraqi Kurds have fled over the border into Iran.

39.   The Cambodian government said on Thursday it would ask the Thai authorities to arrest and return five senior hardline Khmer Rouge officials believed to have fled over the border.

40.   The Cambodian government said on Thursday it will ask the Thai authorities to arrest and return five senior hardline Khmer Rouge officials believed to have fled over the border.