One of four suicide bombers behind the July 7th attacks on London's transport system warned in a videotape aired tonight of more attacks unless "atrocities" against Muslims stopped.
Mohammad Sidique Khan (30), said in English in a tape aired on Al-Jazeera he and thousands of others were committed to defending Islam against violence by "democratically elected governments".
It was not clear when or where the tape had been made.
"Until we feel secure you will be our targets. Until you stop the bombing, gassing, imprisonment and torture ... we will not stop this fight. We are at war and I am a soldier."
Al Jazeera said the tape also included comments from Osama bin Laden's deputy, Ayman al-Zawahri. It was not immediately clear whether these were the same videotaped comments aired by the channel on August 4th in which Zawahri warned Britons of more attacks, saying Prime Minister Tony Blair's policies would only bring them more destruction.
At least two groups linked to Al-Qaeda have already claimed responsibility for the suicide bombings on London's transport system which killed 52 people.
In the August 4th tape, Zawahri repeated previous threats against the United States, saying it and other Western nations would not live in peace until they withdrew their troops from Iraq and other Muslim countries.