Reuters reports that a suicide bombing at a mosque in northeast Nigeria killed at least 21 people on Wednesday.
At least 32 people are reported wounded, according to military sources.
The bombing occurred in Maiduguri, the capital city of the Borno State. Last month, Boko Haram attacked the city and nearby villages, leaving over 80 people dead. Maiduguri has faced attacks by Boko Haram since 2009.