The possibility of holding a meeting of the presidents of the Customs Union member countries and Ukrainian President Petro Poroshenko is being discussed, CIS Executive Secretary Sergei Lebedev told reporters in Minsk on Tuesday.

"President of Belarus Alexander Lukashenko has come up with an initiative to hold a meeting of the presidents of Belarus, Russia and Kazakhstan and invite the president of Ukraine to it. This proposal is now being discussed," he said.

"There is a need for this dialogue," Lebedev added.