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.

The Nigerian Senate on Tuesday rejected a bill to end discrimination against women on grounds of religion and tradition—for the third time. The Senate’s vote against the bill, which proposed women’s rights common in most Western nations, generated backlash from many Nigerians, who view it as a constitutional violation.

Two female suicide bombers killed at least 24 people and injured 23 in an attack on a mosque on the outskirts of Maiduguri, Nigeria, early this morning.

Abba Aji, coordinator for the civilian self-defense vigilante group, said one bomber exploded her device inside the mosque in the town of Umarari as worshippers said their morning prayers. The second bomber waited outside and detonated as people tried to escape. Rescuers discovered the bodies of the bombers and other injured people as they dug through the debris.