The Latest: Iran urges Arab nations to end Qatar crisis

Ministry Spokesman Bahram Ghasemi tells reporters in a weekly news conference: "These countries should try to settle their differences at the negotiating table in a positive and comprehensive process."

The diplomatic crisis, the worst since the 1990 invasion of Kuwait by Iraq and the subsequent Gulf War, has seen Arab nations and others cut ties to Qatar, which hosts a major U.S. military base and will be the host of the 2022 FIFA World Cup.

Ghasemi also says of the countries involved: "They should move toward peace and stability in the region and we invite them to negotiating and exercising restraint."