Protesters threw themselves at a car carrying the King of Bahrain outside Downing Street today.

One unnamed man burst through a crowd and appeared to bang on the windows of the limousine carrying King Hamad bin Isa Al Khalifa.

Police managed to grab the suspect before pinning him and putting him in handcuffs yards from the door of No 10.

King Hamad, who saw the Queen on his UK visit yesterday, met Theresa May this afternoon.

Anger: A protester throws himself at the car carrying the King of Bahrain as it entered Downing Street today

Fight back: Police grabbed two men trying to get near the limousine belonging to the controversial monarch

Held: The suspect who got closest was pinned and cuffed - it is not clear how many arrests took place

Campaign groups have demanded she raises concerns about the death penalty and torture in the country, which receives almost £2million in aid from Britain.

Britain gave Bahrain money to support human rights 'reforms' in the oil-rich Gulf kingdom, which is one of the UK’s closest allies in the region.

However, Mohammed Ramadan, a father of three, remains on death row but campaigners claim he was allegedly tortured into making a false confession.

Mr Ramadan was arrested in February 2014 at Bahrain International Airport where he worked as a police officer, in retaliation for attending peaceful pro-democracy protests while off-duty.

Foreign Office contractors have also trained around 400 prison guards at Bahrain’s Jau prison, where death row inmates including Mr Ramadan are being held, critics say.

Prime Minister Theresa May greets the King of Bahrain, Hamad bin Isa Al Khalifa, at Downing Street after the attack on his car