(CNN) -- A Somali Islamist militant movement on Monday claimed responsibility for a trio of bombings that killed at least 74 people Sunday at two venues in the Ugandan capital, Kampala, where crowds had gathered to watch the World Cup final. "And the best of men have promised and they have delivered," said an Arabic statement issued by Al-Shabaab's press office and obtained by CNN. "Blessed and exalted among men -- (taking) full responsibility. ...We wage war against the 6,000 collaborators; they have received their response." The 6,000 is an apparent reference to African Union peacekeepers in Somalia. Uganda contributes troops to the peacekeeping effort.
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Eighty-five people wounded in blasts, including five Americans
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Somali Islamist militant spokesman says Uganda had been warned
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Ugandan president declares week of mourning for victims
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Death toll from Uganda bombings at 74, including one American
The website set up a page Monday to "receive congratulations" on Al-Shabaab's behalf for the "blessed operations" in @placeholder.