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Hospitals and morgues were flooded with the injured and dead after a string of coordinated bomb attacks on police stations in the city of Kano, Nigeria on Friday. The Islamist group Boko Haram claimed responsibility for the strikes, which the BBC said would be the organization's most deadly attack to date.

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A local man, Andrew Samuel, described the scene of one blast: "I was on the roadside and I just heard a 'boom'. As I came back, I saw the building of the police headquarters crashing down and I ran for my life."

Witnesses said the bomber who attacked one of the police stations pulled up outside the building on a motorbike, dismounted and ran inside holding a bag.

Some unconfirmed reports have claimed suicide bombers carried out some of the attacks.

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