Barack Obama
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Obama says Boston bombings 'cowardly'

US President Obama has described the Boston bombings as "an act of terror" and vowed to find "whoever harmed our citizens".

US President Barack Obama has described the Boston Marathon bombings as "a heinous and cowardly act".

Mr Obama said the attack which killed three people was "an act of terror" but stressed it was not yet known which group or individual was behind it.

"It will take time... but we will find whoever harmed our citizens and we will bring them to justice."