Summary

  • A manhunt is under way to find the person behind Friday's Tube bombing

  • Police are 'chasing down suspects' and trawling CCTV after Parsons Green attack

  • Terror threat level raised to 'critical' - meaning an attack is expected 'imminently'

  • The station reopened in the early hours of Saturday

  • 29 people have been treated in hospital - police say 'most' had 'flash burns'

  • The explosion on the District Line train is being treated as terrorism

  • Police say it was caused by an 'improvised explosive device'

  • Anyone with information, photos or video should call 0800 789 321

Live Reporting

Dearbail Jordan and Claire Heald

  1. Trump's message for London

    Donald TrumpReuters

    "Our hearts and prayers go out to the people of London, who suffered a vicious terrorist attack today. I spoke with a wonderful woman, British prime minister Theresa May, this morning and relayed America's deepest sympathy, as well as our absolute commitment to eradicating the terrorists from our planet. Radical Islamic terrorism, it will be eradicated, believe me."

    President Trump, speaking at Joint Base Andrews in Maryland

  2. Police thank Parsons Green public

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  3. Message from the Mayor of London

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  4. BBC home affairs correspondent tweets...

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  5. Police asked about suspect

    The BBC's Daniel Sandford asks Assistant Commissioner Rowley if they know who left the device...

    Parsons Green: Police asked about suspect

  6. Using military 'frees up 1000 armed police'

    Assistant Commissioner Mark Rowley said he requested permission from ministers to use members of the military for armed police duty.

    He said it meant he had an extra 1000 armed police available to him.

    He urged members of the public to "act on their instinct" if they saw anything concerning, and "not to hesitate" to call.

  7. Met Police: 'Excellent progress'

    Metropolitan Police Assistant Commissioner Mark Rowley says their investigation is making "excellent progress".

    He told reporters "hundreds of police officers are trawling through CCTV".

    Detectives have spoken to "tens" of witnesses and 77 images and videos have been sent from members of the public.

    The remnants of the device has been made safe, he said, and are being examined by forensic scientists.

  8. What does the terror threat level mean?

    Dominic Casciani
    Home Affairs Correspondent

    A word of caution about "imminence". The terror threat level was previously raised to critical in May after Manchester. Then it was lowered again days later after it became clear to intelligence assessors in the Joint Terrorism Analysis Centre that an attack wasn't imminent. Then we had two more incidents - Borough Market/London Bridge and Finsbury Park.

    What does this tell us? Intelligence is usually fragmentary. Analysts sometimes only have glimpses or impressions of what they think is going on. It's an imperfect world.

  9. PM's statement in full

    Parsons Green: PM says terror threat raised to critical

  10. First 'critical' threat since Manchester

    The terror threat was last at "critical", rather than severe, after the Manchester Arena attack in May.

    The level was reduced after four days.

  11. Military to take on some police duties

    Mrs May says the military will take on some of the armed police's role.

    The BBC's Daniel Sandford says people "shouldn't be surprised" to see soldiers on the streets.

  12. Terror threat levels explained

    The terror threat level has been raised to "critical". Here's what the levels mean, according to the MI5 website:

    • LOW means an attack is unlikely
    • MODERATE means an attack is possible, but not likely
    • SUBSTANTIAL means an attack is a strong possibility
    • SEVERE means an attack is highly likely
    • CRITICAL means an attack is expected imminently

  13. Terror threat level raised to 'critical'
    Breaking

    Theresa May has announced that the UK's threat level has been raised to "critical".

    This means "an attack is expected imminently", according to security services.

  14. IS says it was behind attack
    Breaking

    So-called Islamic State has said it was behind the Parsons Green attack, according to a statement on its Amaq news agency.

  15. PM to speak soon

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  16. British Transport Police tweets...

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  17. Armed police at railway stations

    There is a greater police presence at railway stations this evening. This officer was photographed at Euston station.

    Armed police at Euston stationPA

  18. UN chief condemns bomb attack

    The spokesperson for the UN secretary-general has been speaking about the explosion:

    We are obviously following and tracking the developments in London this morning, the attack which left many people injured. We condemn the attack and we wish a speedy recovery to those who were injured. The UN stands in solidarity with the people and government of the United Kingdom and we hope the perpetrators or perpetrator will be quickly brought to justice."

    Stephane Dujarric, Spokesperson for the United Nations secretary-general

  19. Treating trauma with tea and kindness

    After the terror incident at Parsons Green station, local residents offered tea and kindness as support.

    Read More

  20. Parsons Green residents returning home

    Hammersmith and Fulham Council tweet...

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