evidence: Around March 17, a group of men armed with Kalashnikov assault rifles and PKM machine guns arrived in the village of Oudeini. They killed five men in the village and perhaps dozens more near a water point where men had gathered with their livestock, witnesses said. [...] On the same day as the Oudeini attack, a group of Islamic State fighters targeted Intakofa village and surroundings, witnesses said. The men arrived on motorcycles, armed with Kalashnikovs and PKM machine guns, and shot at the villagers. [...] "They started shooting at everything, killing and injuring villagers as they fled," a 45-year-old teacher said. The attackers then went house to house and executed men before leaving at around 1 p.m. They then returned several hours later and killed more men.