Cardinal Cormac Murphy-O'Connor, the President of the Catholic Bishops' Conference of England and Wales, has led an international delegation of bishops from Africa, Asia and Europe to 10 Downing Street to remind Tony Blair of Britain's commitment to the G8 pledges made at Gleneagles in 2005.

As Germany prepares to host the G8 summit in June, the bishops are taking part in a tour calling on the new German government to get the G8 nations back on track to meet their commitment to double aid to Africa - increasing it by $25bn a year by 2010.

Cardinal Murphy-O'Connor chaired Monday's meeting attended by eight senior church figures, including Archbishop Onaiyekan of Abuja, Nigeria, and Archbishop Monsengwo of Kisangani, Democratic Republic of Congo.

The Cardinal highlighted the important role the church has to play in reminding the G8 leaders of their moral duty to keep their promises:

"I thanked the Prime Minister and the Government for the good work already done in drawing the world's attention to the plight of those in need, particularly in Africa. I urged him to continue his leadership in this respect at the forthcoming G8 Summit in Berlin."

The Catholic bishops are lobbying national leaders in London, Berlin and Rome as part of an international Catholic campaign called "The World Can't Wait: Make Aid Work".

The tour will conclude with a meeting with Pope Benedict XVI at the Vatican.