Islamist extremists attacked two villages in Niger near its border with Mali, killing at least 100 people, Niger's prime minister said on Sunday. Prime Minister Brigi Rafini travelled to the two villages a day after the attack. "We came to provide moral support and present the condolences of the president of the republic, the government and the entire Niger nation," he said. The villages in the insecure Tillaberi region were attacked on Saturday after locals killed two fighters, local officials said. Niger has endured several attacks by Islamic extremists, including the Nigeria-based Boko Haram, and fighters linked to the Islamic State group and al-Qaida.