Theresa May raises terror threat level after London attack
U.K. Prime Minister Theresa May on Friday raised the terror threat level as security services hunted for the bomber who left dozens injured in London on a busy subway train.
The threat level was raised from severe to critical, which means further attacks are likely.
Twenty-nine people were injured when a homemade bomb partially exploded on a subway train at Parsons Green station in West London. None of the injuries are thought to be life-threatening.