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NATO has stepped up its bombing campaign in Libya with air raids on the capital Tripoli and a residence of Libyan leader Muammar Gaddafi.  

In the west of the country, rebel fighters and pro-Gaddafi forces are battling for control of a border crossing between Libya and Tunisia.

Al Jazeera's Hoda Abdel Hamid reports from the border crossing.

Source: Al Jazeera