Australian navy pilot surveys Indian Ocean
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On board a patrol plane looking for Somali pirates

21 February 2012 Last updated at 12:30 GMT

Presidents and senior figures from more than 40 countries are meeting in London this week to address the problems of Somalia.

On the agenda is maritime piracy which is costing the world economy an estimated $7bn per year. So what is being done to stop it?

The BBC's security correspondent Frank Gardner is the first British journalist to be allowed on board an Australian Maritime Patrol Aircraft flying on a counter-piracy mission over the Indian Ocean.

You can watch Frank Gardner's full TV report on the BBC News at Ten