An explosion, apparently caused by a car bomb, according to the BBC, Thursday has rocked a neighborhood on the outskirts of Abuja, capital of Nigeria, and has caused many victims, witnesses quoted by Reuters. Emergency services have reported that blast killed at least 18 people and 80 are injured.

The incident occurred in Nyanya, near the bus station where on April 14 killed at least 70 people in an another attack. The BBC reports that the explosion was caused by a car bomb.

The event coincides with the mass kidnapping over a hundred teenagers in a remote area of the country that came hours after the previous attack. Boko Haram has killed about 1,500 people so far this year in Nigeria.

The previous attack was claimed by the Islamist sect Boko Haram. It is, however, unknown yet who was behind the Thursday blast. No group has claimed responsibility for the incident, which occurred a week after the Nigerian capital hosting the World Economic Forum will bring together African economists, politicians and philanthropists.