"Hero" MP Tobias Ellwood has said he is "heartbroken" that his efforts to save the life of a police officer during the Westminster terror attack were ultimately unsuccessful.

The Foreign Office minister ran towards gunfire to help Pc Keith Palmer, who was stabbed in Wednesday's attack by terrorist Khalid Masood.

Mr Ellwood was pictured with blood on his face and clothes as he tried to give Pc Palmer mouth-to-mouth resuscitation and stem the blood amid the carnage in New Palace Yard, but the officer died from his injuries.