Reports have emerged that counter-terror police foiled an alleged plot to bomb Downing Street and murder Prime Minister Theresa May.
It is understood that two suspects were arrested during raids in London and Birmingham last week.
Scotland Yard said: “Both men were remanded in custody to appear at Westminster magistrates court.”
The pair – Naa’imur Zakariyah Rahman, of North London, and Mohammed Aqib Imran, from south east Birmingham – were held on November 28.
The arrests came during raids by officers from the Metropolitan Police’s counter terrorism command.
Last night, the London force said Rahman, aged 20, had been charged with preparing acts of terrorism as well as assisting Imran in terror planning.
Rahman was reportedly arrested while allegedly carrying two potential IEDs last week.
He was said to have been allegedly plotting to bomb the security gates at Downing Street with a device hidden in a bag.
He had allegedly planned to enter No.10 in a suicide vest and carrying pepper spray and a knife in a bid to kill the Prime Minister, according to a national newspaper.
It was also reported that police claimed Imran tried to get a fake passport to reach Libya.
Imran, 21, has been charged with preparing acts of terrorism.
It was reported that Rahman was allegedly discovered on the afternoon of November 28 with two “inert” IEDs in west London.
Police arrested Imran in Birmingham a short time later.
Both men are due to appear before magistrates today (Wednesday).