The “hero" MP who fought to save the officer stabbed by terrorist Khalid Masood has said he is "heartbroken" that his efforts failed.
Tobias Ellwood ran towards gunfire to help Pc Keith Palmer, who was stabbed in Wednesday's attack outside Parliament.
Mr Ellwood was pictured with blood on his face and clothes as he frantically tried to give Pc Palmer mouth-to-mouth resuscitation and stem the blood amid the carnage in New Palace Yard.
But the officer tragically died from his injuries.
The former soldier said he was just doing what he was trained to do as he praised the "humbling" and "overwhelming" messages of support from the policing fraternity.
He intends to write to Pc Palmer's family to offer his condolences and said he was "honoured" to be appointed to the Privy Council, alongside security minister Ben Wallace, in recognition of their roles in responding to the atrocity.
Mr Ellwood, who has been branded a hero for his actions, said in a statement: "I am heartbroken that I could not do more for Pc Keith Palmer who gave his life in holding the line against terrorism and defending democracy.
“I shall be writing to the family of Pc Palmer to offer my sincere condolences.
"It is right that despite the terrible events on Wednesday, Parliamentary business continued the next day as usual, the democratic machine was not interrupted and our way of life did not stop.
"I'm deeply humbled and overwhelmed by the messages of support, especially from the policing fraternity, which I now realise is as close knit as the military's in supporting its own.
"I played only a small part that day, doing what I was taught to do, and am honoured to have been invited to join the Privy Council afterwards.
"It is right that we concentrate our thoughts on the victims as we stand side by side to protect all that we hold dear, including our precious values and way of life which will always prevail."
Masood killed three others in his rampage, during which he mowed through pedestrians on Westminster Bridge.
After launching a knife attack on Pc Palmer, Masood was shot down by armed police. He later died.
Mr Ellwood’s emotional statement comes as anti-terror police reveal Masood’s shocking attack was over within 82 seconds.
A statement released by the Metropolitan Police said: “The Met can confirm the attack started at 14:40:08 on Wednesday, 22 March, when the car that Masood was driving over Westminster Bridge first mounted the northbound pavement.
“He continued towards Bridge Street along both the footpath and road until 14:40:38 before crashing into the perimeter fence of the Palace of Westminster.
“Masood left the vehicle and was shot by a police firearms officer inside the Palace of Westminster boundary at 14:41:30.”
Deputy assistant commissioner Neil Basu, said his team is “grateful” for the level of public support but is still appealing for people to come forward with information.
"If you knew Khalid Masood and had spoken to him in the months, weeks or days leading up to this attack please come forward.
"We still believe that Masood acted alone on the day and there is no information or intelligence to suggest there are further attacks planned.
"We must all accept that there is a possibility we will never understand why he did this. That understanding may have died with him.
"Nevertheless, we are determined to understand if Masood was a lone actor inspired by terrorist propaganda or if others have encouraged, supported or directed him.
"Whilst the attack lasted only 82 seconds it will remain in the memories of many forever. The thoughts of all those working on this investigation are with those so deeply affected.
"The response has been outstanding. The way that communities in London, and throughout the UK, have come together in the wake of this attack shows that we will not give into those who seek to breed discord and fear.
"Terrorists have tried to tear this City apart before and they have never succeeded. A very small minority of people have tried to use this as an opportunity to stir up hate, but once again we stand together in calm defiance. We will not allow them to divide us."