A teenager has been found guilty of five terror offences after plotting an attack for the day of a Justin Bieber concert.
The 17-year-old was arrested in June after he starting researching security at the show in Cardiff, according to The Sun.
He also searched on his laptop for “driving a lorry into a crowd."
The court heard that police officers who visited his home only hours before the planned attack found he had put a knife and a hammer in his school bag. However he told police this was not for use in a terror attack.
He was also found to have written a "martyrdom letter” with the aim of this being published after his own death.
It is claimed the teenager said he was a “soldier of the Islamic State” and his attack in Cardiff would be deadly as well as using the phrase “may the blood flow like rivers."
It is thought the white British teenager was radicalised online after someone called "Al-Baghdadi" got in touch with him.
Birmingham Crown Court also heard that he had an Instagram account where he posted “Cardiff, are you ready for our terror” and his password was linked to truck attacks, The Mirror said.
The teenager had denied the terror offences in court. He is set to be sentenced in January.