She also stressed that the EU would continue working to resolve the conflict in eastern Ukraine, according to DW.
In addition, Mogherini said the EU would never recognize the illegal annexation of Crimea by Russia.
As UNIAN reported earlier, the European Parliament on April 6 upheld the European Commission's decision to grant Ukraine a visa-free regime.
Read alsoUkraine's envoy slams Russia at UN Security CouncilOn April 26, the Committee of Permanent Representatives of the EU member states (COREPER) supported the move to grant the Ukrainians a visa-free travel across the EU.
On May 11, the decision must be approved by the Council of the European Union with the subsequent signing by the presidents of the European Parliament and the Council of the European Union.