A man has appeared in court accused of plotting to assassinate the British Prime Minister in a bomb and knife attack on Downing Street.

Naa'imur Zakariyah Rahman, 20, is alleged to have planned to bomb the security gates outside the Westminster residence before attacking Number 10 with a knife and suicide vest in a bid to kill Theresa May.

He has been charged with preparing acts of terrorism and appeared at Westminster Magistrates Court, alongside Mohammed Aqib Imran, 21, who is accused of trying to join the so-called Islamic State group.

They were arrested in raids by the Metropolitan Police's Counter Terrorism Command in London and Birmingham on 28 November.

Details of the plan were reportedly given to the British cabinet yesterday by the head of MI5 Andrew Parker in a briefing in which he revealed that a total of nine Islamist terrorist plots have been thwarted in the UK over the past year.

Mr Rahman, of Ballards Lane, in Finchley, north London, is also charged with assisting Mr Imran in terror planning.

Mr Imran, of Ombersley Road, in the Sparkbrook area of Birmingham, is charged with preparing acts of terrorism.

Chief magistrate Emma Arbuthnot remanded them in custody to appear at the Old Bailey on 20 December.