'You will always be in our hearts': Sadiq Khan's tribute to terror attack victims as he visits Westminster Bridge

Sadiq Khan visited Westminster Bridge today to look at tributes laid to the four killed and at least 50 injured in Wednesday’s terror attack.

The Mayor lay flowers outside New Scotland Yard to mark the death of PC Keith Palmer before walking along the bridge where attacker Khalid Masood mowed down a crowd of pedestrians just 48 hours earlier.

He left a note and floral tribute which said: "You will always be in our hearts. Londoners will never forget the innocent people who lost their lives."

Khalid Masood, driving a Hyundai Tucson, ploughed through pedestrians on the bridge before stabbing the police officer to death outside Parliament.

This afternoon Mr Khan was pictured as he walked along the bridge, stopping to read tributes placed among flowers laid for the casualties.

Huge piles of flowers as well as hand-written notes and pictures adorned the pavements which were turned into a bloodbath two days ago when Masood drove through screaming tourists and Londoners in a bloody rampage.

A note left by British Transport Police officers from Lambeth, South London simply read: "For Pc Keith Palmer. HERO. Never forgotten."

The message from Hertfordshire Police officers from St Albans read: "Keith, one of our own, forever in our thoughts."

Mr Khan was among a number of dignitaries, police officers and ordinary Londoners to lay flowers outside the Met's headquarters for PC Palmer.

Earlier the mayor said he had "more important things to do" than respond to a scornful Tweet from Donald Trump’s son sent just hours after the terror attack.

Donald Trump Jr tweeted a link to a news story that quoted Mr Khan last year saying that acts of terrorism were “part and parcel of living in a big city.”

On the day of the bloody assault, quoting the article’s headline, Trump Jr wrote on social media: “You have to be kidding me?!”

When asked for a response on an American news station, Mr Khan coolly shut down the discussion by refusing to comment.

“Look, I’m not going to respond to a Tweet from Donald Trump Jr. I’ve been doing far more important things over the last 24 hours,” he told CNN.

“What I do know is that the threat level in London and across the country is severe. That means an attack is highly likely.

“Terrorists hate the fact that, whether it’s London whether it’s New York, whether it’s Brussels… We have diverse communities living together peacefully.”

At a vigil in Trafalgar Square on Thursday evening, Mr Khan invited both residents and tourists to join a candlelit memorial at the central London landmark in solidarity with the victims.

Mr Khan had encouraged “everyone visiting our city” to join together in memory of those who lost their lives.

He told the crowd “to show the world that we are more committed than ever to the values that we hold dear - that we remain united and open.”

On Thursday morning a book of condolence was laid in Westminster Hall for MPs, staff and members of the public to write messages to honour those who died.

The four killed in Wednesday’s tack are PC Keith Palmer, American Kurt Cochran, Spaniard Aysha Frade and 75-year-old Leslie Rhodes from Streatham.

It is now thought at least 50 people were injured in the terror attack with 31 being hospitalised. Two people remain in a critical condition and one person is suffering from life-threatening injuries.