"We have recently seen a serious deterioration of the situation in the south-east of Ukraine. The aim of this escalation is obvious: to disrupt the Minsk agreements," Putin said at a board meeting of the Federal Security Service.

Read alsoMH17 case: Bellingcat spots possible organizer of relocation of deadly Buk (Photo)"Today, the authorities in Ukraine are not ready for a peaceful solution to this difficult problem. They bet on a military solution. Moreover, they are speaking openly of setting up the acts of sabotage and terrorism, subversive activities, including in Russia. This cannot but disturb us," he said.