An Iranian Army helicopter carrying President Abol Hassan Ban-Sadr on a tour of the Iraqi border crashed but Ban-Sadr escaped injury, Tehran radio reported.
The president was visiting areas where there have been recent clashes between Iraqi and Iranian troops. The helicopter, which was flying low, had technical problems, the pilot lost control and the craft hit the ground, the radio said.
Earlier, Tehran radio reported that Iran executed 15 more alleged conspirators in a foiled plot to overthrow revolutionary leader Ayatollah Ruhollah Khomeini. This brought to 68 the number of persons sentenced to death for the coup attempt.
Among those executed was Maj. Gen. Said Mehdiyun, the first postrevolutionary head of Iran's Air Force. Iranian officials said the alleged conspiracy was aimed at restoring Shahpour Bakhtiar to power. He was the last prime minister appointed by the late shah.
Meanwhile, the Iranian Oil Ministry painted a wealthy picture of Iran's oil industry and said it did not face any problems despite the loss of 1,200 foreign technicians after the revolution.
In a report for the Persian year ended March 20, the first full year since the overthrow of the shah, the ministry said average daily production of crude oil was 3.45 million barrels, of which 2.65 million barrels were exported.
The report, printed by the official Pars News Agency, said that apart from crude sales, refined petroleum products equivalent to 250,000 barrels of crude a day were also exported.
Under the shah, oil production reached a peak of more than 6 million barrels a day.