A female Nigerian suicide bomber who surrendered to Cameroonian authorities claims she is one of the 276 girls abducted from a boarding school in Chibok by Islamic militants nearly two years ago, authorities revealed on Saturday. The Nigerian government is working with Cameroon to verify the claim. If true, it would be the first news related to the kidnapped girls in many months.

The girl, estimated to be about 15 years old, was one of two girls with explosives arrested by local authorities in northern Cameroon on Friday.

Angola is battling its worst yellow fever outbreak in 30 years. The disease has infected more than 450 people and killed 178, the World Health Organization (WHO) reported Thursday. The epidemic erupted as the oil-dependent country struggles through a decline in oil prices and severe budget cuts.

The outbreak was first reported in December in Viana, a poor suburb in the capital city Luanda. It has since spread to six of the country’s 18 provinces.

Nigerian troops rescued more than 800 hostages held by Boko Haram in a Tuesday operation in parts of Borno state, the army announced Thursday.

Spokesman Sani Usman said the troops killed 22 fighters and rescued 309 captives while clearing terrorists from 11 villages. They freed another 520 hostages in Kusumma village, where they killed three terrorists and arrested one.

Relief organizations in eastern Africa are grappling with increasing humanitarian needs as some countries continue to struggle with the worst drought in decades.

Warmer El Niño weather conditions have left stark effects across some southern and eastern African countries. The drought has affected about 36 million people, with 1 million children already experiencing severe acute malnutrition, according to UNICEF.

Gunmen on Monday evening attacked the European Union military training headquarters in Mali’s capital, Bamako, in the latest attack on Western presence in the region.

The EU training mission released a statement saying its headquarters, housed in the Hotel Nord-Sud, was attacked by small arms fire, but no personnel had been wounded.

Armed forces killed at least one of the attackers and continued the search for three others, according to Malian special-forces spokesman Cmdr. Modibo Naman Traore.

An Egypt-based Islamic State (ISIS) affiliate killed 15 policemen on Saturday in a mortar attack on a checkpoint in the city of el-Arish.

Witnesses reported the militants also peppered ambulances with gunfire as they tried to reach the wounded. Security forces killed five of the assailants.

The prime minister of Libya’s UN-backed unity government on Thursday said the new governing body will move from Tunis to Tripoli, Libya’s capital, “within a few days.” But disapproval of the new leadership among Libya’s warring factions raises concerns the unity government, seen as the sole hope for resolving the country’s conflict, may fuel more chaos in Libya and its neighbors.