Residents say 13 people were killed and 35 injured when two mosques in northern Nigeria were bombed Tuesday night at the close of Eid al-Fitr, the Muslim holiday marking the end of Ramadan.

Abdul Maidala said that the first bomb went off by a mosque near the palace of a local emir at about 7:30 p.m. and the second exploded a few minutes later in Yobe State, one of three northeastern Nigerian states that have been under emergency rule for more than a year.

No one immediately claimed responsibility for the attacks but Boko Haram militants are widely blamed, having killed thousands of people this year alone.

Boko Haram wants to impose its extreme version of Islamic Shariah law and it frequently targets moderate Muslim clerics, civilians, mosques and children.