UK Prime Minister condemns the tube train attack as "cowardly"

 An "improvised explosive device" was detonated on a Tube train in south-west London during Friday's morning rush hour, Scotland Yard has confirmed.

Twenty-nine people have been treated in hospitals, mostly for burns, though at least eight have now been discharged, the BBC reported.

The blast, at Parsons Green station on a District Line train from Wimbledon, is being treated as terrorism.

A hunt for the person who placed the device is under way and the area around the station has been evacuated.

Specialist officers have been securing the remains of the improvised device and ensuring it is stable.

Prime Minister Theresa May condemned the "cowardly" attack, which she said had "intended to cause significant harm".

She said the UK's terror threat level would remain at severe - the second highest - but would be under review.

Speaking in Downing Street after chairing a meeting of the Cobra emergency committee, she said there would be an increased armed police presence on the transport network in London.

Hundreds of detectives and MI5 are investigating the attack, which took place at 08:20 BST on an eastbound train.

US President Donald Trump has spoken to Prime Minister Theresa May to convey his sympathies for those injured in the terrorist attack, the White House has said.

President Trump pledged to continue close collaboration with the UK to stop attacks and combat extremism, the statement added.

A Downing Street spokesman said: "President Trump called the prime minister earlier today to offer his condolences over this morning's cowardly attack in London."