Three men have been charged over an alleged plot to assassinate British Prime Minister Gordon Brown.
British police say the three men, aged 21, 22 and 23, made threats against Mr Brown and his predecessor Tony Blair.
The threats were allegedly made on a jihadi website.
The group posting the statement called itself "Al Qaeda in Britain" and demanded the withdrawal of British forces from Iraq and Afghanistan and the release of a number of prisoners in Britain.
If the demands were not met, it said Mr Brown and Mr Blair would be assassinated.
The men were arrested at Manchester Airport and at addresses in the county of Lancashire two weeks ago.
They have now been charged with terror offences, including belonging to the banned terrorist organisation Al Qaeda, and will appear in court on Friday.