An explosion at Guinea’s main oil terminal in Conakry has killed 13 people, injuring scores more. The fire has been largely contained, but concerns over fuel shortages have prompted residents to besiege gas stations nearby. Plus, candidates make one last appeal for votes on the campaign trail ahead of Wednesday’s crunch elections in DR Congo. And on International Migrants Day, we take a look at the situation in Tunisia, where NGOs report daily abuse against refugees.