Multiple explosions in Nigeria’s northern city of Kano have killed at least 12 people.

The blasts happened late Monday near a bar in the predominantly Christian Sabon Gari area of the city.

There was no immediate claim of responsibility for the attacks.

An explosion at a bus station in the same district earlier this year killed 20 people.

Nigeria has been battling the Islamist militant group Boko Haram, which wants to impose a strict form of Islamic law in Nigeria’s majority-Muslim north.

President Goodluck Jonathan declared a state of emergency and sent additional troops to three northeastern states in mid-May. Militant attacks have continued, including at least three against schools in the past month.

Boko Haram is blamed for thousands of deaths in bombing and shooting attacks since 2009. Rights groups say the military has killed hundreds more, many of them civilians, in efforts to crush the group.

Boko Haram’s name in the Hausa language means “Western education is sinful.”