Radical preacher Anjem Choudary has been charged with terrorism offences after allegedly inviting support for Islamic State (Isis).
Choudary has been charged alongside Mohammed Mizanur for inviting support for the Jihadist group during lectures that have been published online.
Choudary and Mizanur have been charged with one count each for alleged offences under section 12 of the Terrorism Act 2000.
Both men are due to appear at Westminster Magistrates Court on 5 August to face the charges.
Sue Hemming, head of special crime and counter terrorism at the Crown Prosecution Service, said: "Following an investigation by the Metropolitan Police's counter terrorism command, we have today authorised charges against Anjem Choudary and Mohammed Mizanur Rahman.
"We have concluded that there is sufficient evidence and it is in the public interest to prosecute Anjem Choudary and Mohammed Rahman for inviting support for IS, a proscribed terrorist organisation, between 29 June 2014 and 6 March this year. Each man is charged with one offence contrary to section 12 of the Terrorism Act 2000.
"It is alleged that Anjem Choudary and Mohammed Rahman invited support for IS in individual lectures, which were subsequently published online.
Hemming added: "Criminal proceedings have now commenced and both men have a right to a fair trial. It is extremely important that there should be no reporting, commentary or sharing of information online which could in any way prejudice these proceedings."