A DAESH fanatic plotted to assassinate Theresa May in a suicide bomb attack on No.10, a court has heard.

Naa’imur Zakariyah Rahman, 20, was urged by an uncle who joined Daesh and died in a drone strike in Syria to cause carnage in Britain, jurors were told.

He thought he was days from an attack, inflicting ‘lethal violence’ with a blade and suicide vest in Downing Street, but his plan was uncovered by an MI5 agent and he was arrested last November, the Old Bailey heard.

Rahman used the Telegram messaging service to talk to an agent posing as a senior Daesh official in Syria, the court heard. He also met undercover officers in London before his arrest, said prosecutor Mark Heywood QC.

He told the jury Rahman’s preferred idea was for him and ‘a couple of brothers’ to ‘raid Parliament and kill everyone inside’. ‘He then said he would aim for when Theresa May came out of 10 Downing Street and spoke,’ said Mr Heywood. ‘There would only be the gate. He would fire shots at her and use the vest.’

He said Rahman planned a full frontal attack and fully expected to die; if he couldn’t get a gun he would use a knife.

Rahman is accused of conducting reconnaissance, recording a pledge of allegiance and delivering a rucksack and jacket to be fitted with explosives.

He is also accused of helping his friend Mohammad Aqib Imran, 22, join Daesh in Syria by recording a sponsorship video. Mr Heywood said the men shared the same ‘warped ideology’.

He said Imran set about getting money and a fake passport, acquiring ‘the information and means to travel abroad for violence for terrorist purposes’.

Rahman, from Finchley, north London, denies two counts of preparing terrorist acts. Imran, of Sparkbrook, Birmingham, has pleaded not guilty to preparing terrorist acts and possessing a terrorist document on his Kindle. The trial continues.