Donald Trump says 'these animals are crazy' as president responds to Westminster terror attack

Donald Trump on Tuesday urged tough action against the "animals" behind the suspected terror attack in Westminster.

The US president said on Tuesday morning in a tweet: "Another terrorist attack in London...These animals are crazy and must be dealt with through toughness and strength!"

A driver was arrested on suspicion of terrorism offences after a car crashed into security barriers outside the Houses of Parliament at high speed on Tuesday morning.

At least three people were injured when the silver Ford Fiesta hit a group of cyclists and pedestrians waiting for traffic lights to change. Witnesses said the car mounted the pavement on the wrong side of the road at up to 50mph and travelled around 40 metres (130ft) before hitting a bollard.

Armed officers swooped in to arrest the driver, removing him from the vehicle at gunpoint.

Later images showed police holding the man, dressed in jeans and a black puffer jacket, in handcuffs as roads and Underground stations around parliament were sealed off.

"The driver of the car, a man in his late 20s... was arrested on suspicion of terrorist offences," said police.

"There was nobody else in the vehicle, which remains at the scene and is being searched. No weapons have been recovered at this stage."

Police have yet to identify the suspect, who was not cooperating with detectives, said Metropolitan Police Assistant Commissioner Neil Basu.

Mr Trump's comments follow controversial remarks in the past surrounding terrorism and crime in London.

In July Mr Trump used a newspaper interview ahead of his visit to the UK to blame Sidiq Khan, the mayor of London, for terror attacks in the capital.

"Take a look at the terrorism that is taking place. Look at what is going on in London. I think he has done a very bad job on terrorism," he said.

Following the release of official figures in October last year, showing an increase in recorded crime, Mr Trump controversially linked the rise with the "spread of radical Islamic terror".

His interpretation of the statistics, which included offences ranging from burglary to fraud, prompted politicians to describe his comments as "inflammatory" and "ignorant".