Saudi authorities received a help request from a distressed Iranian oil tanker off its coast in a message delivered through the United Nations in New York.
Iranian drivers queued up in long lines at gasoline stations in the Iranian capital and several other cities on May 1 to fill their gas tanks amid rumors that gasoline rationing would go into effect on May 2.
Iranian police have detained dozens of labor activists and at least two journalists as they violently dispersed a May Day demonstration in central Tehran, reports say.
Saudi Arabia says its coast guard has rescued a distressed Iranian oil tanker off the Red Sea port of Jiddah, raising concerns that the ship's cargo could be leaking.
Iran says it wants good relations with Saudi Arabia, the United Arab Emirates, and their allies, and it called on them to end their bitter dispute with Persian Gulf neighbor Qatar.
The U.S. special representative for Iran is traveling to the United Nations to update permanent members of the Security Council on U.S. policy toward Iran, as Washington looks to step up pressure on Tehran.
Iran will continue to export oil despite increasing pressure by Washington, Iranian President Hassan Rohani said in a speech broadcast live by state TV on April 30.
Amnesty International says Iranian officials have lashed and secretly executed two 17-year-old cousins in southern Iran.
Iran's economy is expected to shrink by six percent this year and inflation could reach 40 percent, the International Monetary Fund (IMF) forecasts, as the country copes with the impact of tighter U.S. sanctions.
Jailed Iranian human rights defender Narges Mohammadi is in urgent need of surgery, her attorney said on April 28.
The Iranian army's chief of staff says Tehran could close the vital Strait of Hormuz if "hostilities reach a level where this cannot be avoided."
Iranian state media says Foreign Minister Mohammad Javad Zarif is planning to visit North Korea.