BEIJING, July 7 (Xinhuanet) -- On the eve of the first anniversary of the attacks on London's transit system, a video surfaced Thursday purporting to show one of the four suicide bombers warning that the attacks were only the beginning of a campaign of terror.

    The video aired by Al-Jazeera TV showed Shehzad Tanweer pointing his finger at the camera and declaring there would be a string of attacks unless British troops were withdrawn from Afghanistan and Iraq.

    "What you have witnessed now is only the beginning of a series of attacks that will continue and increase in strength until you withdraw your soldiers from Afghanistan and Iraq, and until you (the British government) stop your financial and military support for America and Israel," Tanweer said in English on the video.

    The chilling last testament was filmed before Tanweer, 22, boarded a train on the London Underground's Circle line and detonated the bomb that killed himself and six others.

    The four bombers killed themselves and 52 victims in attacks on three subway trains and a bus on July 7, 2005.

    The tape also showed what seemed to be some kind of terrorist training camp and a map of London with areas circled as potential targets.

    British police did not directly confirm the authenticity of the tape.

    Prime Minister Tony Blair's official spokesman said Blair had no comment on the video.

    "We want the attention to focus on the quiet reflection of the nation as a whole tomorrow. We don't think anything should be able to get in the way of that," the spokesman said. 

    The timing of the broadcast seemed intended to overshadow preparations for a relatively muted anniversary to be marked with two minutes' silence at noon, church services and the unveiling of commemorative plaques at the places where the bombers struck. Enditem

(Agencies)