He has been remanded in custody until another court hearing is held

He is accused of planning a mass-

A young Muslim man is accused of attempting to buy guns and a suicide vest for an Islamic State-inspired massacre at Buckingham Palace.

Haroon Ali-Syed, 19, was arrested by counter-terrorism officers amid fears he was on the brink of committing an atrocity.

The IT student is also suspected of trying to contact a bombmaker to build a nail bomb, and researching an Elton John concert in Hyde Park which took place on Sunday to mark the anniversary of the September 11 attacks.

Haroon Ali-Syed, 19, from Hounslow in west London, pictured in a court sketch, was arrested last week on suspicion of a terror offence

Ali-Syed is said to have researched this Elton John concertin Hyde Park on September 11

He is charged with planning to carry out an attack at a central London landmark, potentially Buckingham Palace or Oxford Street.

It is understood evidence against Ali-Syed was gathered in a joint operation between MI5 and Scotland Yard.

An undercover officer, posing as an extremist, infiltrated his circle and allegedly recorded exchanges of him preparing a terrorist attack.

Ali-Syed is accused of attempting to get hold of an improvised pressure cooker bomb built to instructions published online by Al Qaeda.

He allegedly made applications for loans worth £8,000 to finance his plans.

Yesterday, he appeared at Westminster Magistrates' Court charged with preparing an act of terrorism between April 12 and September 9.

Prosecutor Thomas Halpin said Ali-Syed tried to contact someone online 'to make an incendiary explosive device,' asking