ABUJA, Nigeria — Authorities on Tuesday said four men, including the brother of an alleged gunrunner and militant leader, face treason and terrorism charges over a dual car bombing that killed at least 12 people in Nigeria's capital.
Charles Okah, the younger brother of alleged militant leader Henry Okah, and three other men were formally charged Tuesday over the Oct. 1 independence day bombing that struck Nigeria's capital, Abuja.
The men pleaded not guilty and have their next court appearance on Dec. 15.
If convicted of treason, the men could face the death penalty.
Dozens of people were wounded in the attack claimed by the Movement for the Emancipation of the Niger Delta, the main militant group in the country's oil-rich southern delta. Henry Okah faces terrorism charges in South Africa over the attack.