Millions of people have been forced to flee attacks by Boko Haram, and many have to live in camps for internally displaced people.
A train derailed in Sidi Bouknadel, a town near Rabat, killing at least seven people and injuring more than 80 others.
The blasts came a day before the first anniversary of a truck bombing that left more than 500 dead in Mogadishu, the worst ever attack in Somalia which was blamed on militant group Al-Shabab.
In the city of Maiduguri, where the militant group was formed, Islamic scholars and community leaders are trying to contain the group's violent message with a curriculum based on peace.
The released children were among 1,175 boys and 294 girls who had been identified as being associated with the Civilian Joint Task Force in the city of Maiduguri, UNICEF said, although the total has yet to be verified.
The Ugandan Red Cross says the death toll could jump when rescue reams access all the affected areas in the foothills of Mountain Elgon in Bududa district.
The bus was travelling from Nairobi to the western town of Kakamega and carrying 52 passengers.
Maurice Kamto declares victory in presidential elections, saying he had "achieved his goal" in Sunday's vote and calls on President Paul Biya to hand over power peacefully.
The African country's 6.5 million eligible voters will cast their ballots as octogenarian President Paul Biya seeks a seventh term against a backdrop of unprecedented violence in the country's English-speaking regions.
The region's interim governor says nearly a hundred others have suffered second-degree burns. Witnesses say the tanker collided with a bus, and villagers quickly rushed to collect leaking fuel, but a fire quickly broke out.
The UN has gotten scrutiny in recent years over claims of child rape and other sexual abuse by peacekeepers, and the four-year-old mission in Central African Republic has been confronted with a particularly high number of claims.
The Norwegian Nobel Committee said it had awarded Nadia Murad and Denis Mukwege the prize for their respective efforts to end the use of sexual violence as a weapon of war.
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