Iran and the P5+1 group began in Vienna a new round of talks related to the dispute over Iran nuclear program

Iran and the P5+1 group began in Vienna a new round of talks related to the dispute over Iran nuclear program.

The talks started with a meeting between Iranian Foreign Minister Mohammad Jawad Zarif and EU foreign policy chief Catherine Ashton on Tuesday in the Austrian capital Vienna.

The Iranian negotiators that arrived in Vienna on Monday are trying with the other side to transform an interim deal reached late last year in Geneva into a long-lasting agreement by July 20.

"This round of negotiations compared to the previous ones will be more serious and tougher," Zarif said on Sunday.

However he didn't expect that an agreement would be reached in this round.