(Corrects day in text)
KADUNA, Nigeria, July 23 (Reuters) - A second bomb blast in Kaduna killed 50 in the north Nigerian city's crowded Kawo market on Wednesday, a local Red Cross worker on the scene told Reuters by telephone.
The blast followed another targeting an Imam in the city centre that killed 32 of his followers.
(Reporting by Garba Muhammed; Writing by Tim Cocks)
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