IRNA � Iranian President Hassan Rouhani who was on a visit to Austria and Switzerland returned to Tehran early morning on Thursday.

Iran's Foreign Minister Mohammad Javad Zarif, Health Minister Hassan Qazizadeh Hashemi, Vice-President for Scientific and Technological Affairs Sorena Sattari, Advisor to President Hesamoddin Ashna, and President chief of staff Mahmoud Vaezi accompanied the President on the visits.

President Rouhani was officially welcomed in the two European countries' capitals.

During the trip all three countries emphasized that the Joint Comprehensive Plan of Action (JCPOA), also known as Iran Deal, should be preserved.

Swiss President Alain Berset said on the visits that with quitting the JCPOA, the US showed that it is not committed to international agreements.