As the bicentenary of the end of the transatlantic slave trade approaches Jonathan Bartley says we are enslaved until Africa is free

Campaigners bound in chains have set off on a 250-mile march to commemorate the abolition of the transatlantic slave trade.

As the UK commemorates the end of the slave trade, an original sculpture has been commissioned by Christian Aid and National Museums Liverpool from a group of Haitian artists representing their continuing struggle for freedom and human rights.

In a move that has been welcomed by campaigners, the Prime Minister has announced that Britain will sign up to a European convention to "stamp out" human trafficking.

A march is to take place in two months time, involving the Archbishops of Canterbury and York, to express repentance for the Church of England's complicity in the slave trade.