A large explosion on Monday rocked a major Shiite ceremony in northeast Nigeria's Yobe state, an area repeatedly attacked by Sunni Islamist group Boko Haram, multiple witnesses said.
The blast targeted a procession of worshippers in the Tsohuwar Kasuwa area of Potiskum city, said witness Ibrahim Maina. A police officer at the scene who requested anonymity said "it was a huge crowd and many of them were affected."