An African man pleaded guilty yesterday to helping to plot al Qaeda-inspired botched suicide bombings on London's transport system on July 21, 2005.

Manfo Kwaku Asiedu, who was born in Ghana, admitted a charge of conspiracy to cause explosions over the failed bombings.

The attacks were attempted two weeks after four British Islamists killed 52 people in suicide bombings on three underground trains and a bus in the capital.