European Council President Donald Tusk wrote on Twitter, Censor.NET reports.
"The EU stays the course on Russia including economic sanctions unchanged as long as the Minsk agreements are not fully implemented," he noted.
Tusk stressed the need of respect for the international law.
"Any maritime or territorial claim should be based on the international law and any possible dispute should be resolved by peaceful means. These are universal and non-negotiable basic principles."
At a briefing before the G7 summit, Tusk said that the crisis in Ukraine can only be resolved in full compliance with the international law, "especially the legal obligation to respect Ukraine's sovereignty, territorial integrity and independence."
"Unfortunately, there is much less progress on the implementation of Minsk than we had hoped for one year ago in Elmau," he remarked.
Tusk is pretty confident that the EU will extend the sanctions and there will be no need for a special debate on this matter. A decision will be taken within the next two or three weeks, he believes.