Equally, all recent incidents targeted at the OSCE SMM – including its monitors caught in cross-fire in Shchastya and Shyrokyne and, on 9 August, setting on fire the Mission's vehicles in Donetsk – put in danger the crucial role that the SMM plays in monitoring and verifying the implementation of the Minsk agreements, which is the basis for a sustainable solution of the conflict in full respect of Ukraine's independence, sovereignty and territorial integrity.

The Minsk Agreements must be implemented in good faith, starting with full observation of the ceasefire and genuine withdrawal of heavy weapons. Further impetus must be given to talks within the Trilateral Contact Group, allowing for complete implementation of the Minsk Agreements within the agreed timeframe by the end of the year."

http://eeas.europa.eu/statements-eeas/2015/150811_03_en.htm