A spokesman of the European Union (EU) on Thursday denied reports that the EU member states have reached agreement over import ban on Iranian oil.

"It's not true," Michael Mann, the spokesman of EU foreign policy chief Catherine Ashton, told Xinhua over telephone.

"We are still discussing potential sanctions, we are hoping to reach a decision before the next foreign affairs council at the end of the month," he added.

It was reported on Wednesday that European governments have agreed in principle to ban imports of Iranian crude oil to enhance pressure on the country over its nuclear program.