Britain's Prime Minister Theresa May struck a defiant tone Thursday, in remarks to Parliament after a British man identified as Khalid Masood, 52, rammed his car into pedestrians near the British Parliament. Flowers with messages have been left at the scene in memory of the victims.
Britain Parliament Attack Aftermath

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Armed police officers secure the area near the Houses of Parliament in central London on March 23, 2017 the day after the March 22 terror attack in Westminster claimed at least three lives.

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An arrangement of newspapers pictured in London on March 23, 2017, as an illustration, shows the front pages of the UK daily newspapers reporting on the March 22 terror attack.