France’s prime minister, on a visit to Burkina Faso, promised to aid five African countries that are fighting Islamic militants.
Tensions are rising amid a failed military coup, a slew of contentious arrests and one presidential challenger running his campaign from behind bars.
Friday's bombing was the latest in a series of deadly attacks in the northern part of the country.
Nigerian army spokesman Col. Sani Usman said troops ambushed Boko Haram militants Wednesday night as they emerged from their hideouts in Sambisa forest.
With Nigeria-based Boko Haram militants posing a threat in West Africa, concerns have risen about terrorists using full-body veils to hide bombs.
Cooperation between the U.S. and African nations has increased as ISIS has exploited a power vacuum in Libya, a U.S. commander said.
An elderly doctor and his wife who have lived in Djibo since 1972 reportedly were taken hostage near the border with Mali and Niger.
Attackers stormed the Splendid Hotel in the African nation's capital, leading to an intense exchange of gunfire with security forces.
In a recent media chat, President Muhammadu Buhari said hijab might be outlawed if suicide bombings continue.
Roch Marc Kabore was sworn in as president of the African nation Tuesday, succeeding longtime ruler Blaise Compaore.
While the Islamic State group was reportedly responsible for 6,073 fatalities in 2014, Boko Haram was even more lethal, with a body count of 6,644.
President Muhammadu Buhari has given a Dec. 31 deadline to the country's army to defeat the militant group, which has killed tens of thousands of people.
Russia is arming Kyrgyzstan's military, to the northeast of Afghanistan, to counter threats from the Islamic State group.
According to Unicef, the militant group Boko Haram has put more than a million children out of school in Northern Africa.
Boko Haram pledged allegiance to ISIS in March. The militant group in Nigeria apparently has killed more than 1,000 people in the past two months.
Saudi Arabia announced Tuesday a newly formed, 34-nation military alliance to fight ISIS. Nigeria was among the countries named that was caught off guard by the announcement.