Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

Armed policemen stand guard at the gates of Downing Street in London on January 23, 2010. Britain raised its assessment of the terror threat from substantial to severe, the second highest level, suggesting an attack on the country is "highly likely", Home Secretary Alan Johnson said. The change was announced just weeks after a failed plane bombing in the United States, and days ahead of two major international conferences on Yemen and Afghanistan in London. AFP PHOTO/Ben Stansall (Photo credit should read BEN STANSALL/AFP/Getty Images)
Armed policemen stand guard at the gates of Downing Street in London on January 23, 2010. Britain raised its assessment of the terror threat from substantial to severe, the second highest level, suggesting an attack on the country is "highly likely", Home Secretary Alan Johnson said. The change was announced just weeks after a failed plane bombing in the United States, and days ahead of two major international conferences on Yemen and Afghanistan in London. AFP PHOTO/Ben Stansall (Photo credit should read BEN STANSALL/AFP/Getty Images)

    JUST WATCHED

    UK raises terror threat level

MUST WATCH

UK raises terror threat level

The UK government raised its terror threat level from substantial to severe in response to events in Iraq and Syria.

UK raises terror threat level

The UK government raised its terror threat level from substantial to severe in response to events in Iraq and Syria.