"During the last 48 hours we have actually sees a decrease in the use of weapons in eastern Ukraine. But there were small incidents with the use of small arms. Also, in the last 48 hours there were reports on the withdrawal of some heavy weapons, but the OSCE monitors cannot confirm this," Hug said.
According to him, the observers confirm that the security zone agreed in Minsk is not yet secure.
"The risk of escalation remains until all parties will adhere to the Minsk agreement," he added.