Same thing happened in March.
Cut to the chase, the area has recently become oil rich, but the people remain desperately poor. The Government are stealing the wealth and employing Russian mercenaries to keep order.
Islamic Extremists spotting an opportunity, roll up, crush to Government forces (and paid Russians) and take over. Then start to dispense their mediaeval justice on the local populous.
Meanwhile, thousands of miles away, their sad plight is hijacked by bigots to point score over each other. They condemn the islamists, but barely a word of sympathy for the poor victims.
Repeated ad nauseam, sadly.