Iran's Revolutionary Guard Corps in turn has accused Saudi Arabia of involvement in June 7 attacks in Tehran, when gunmen and suicide bombers attacked the parliament complex and the shrine of revolutionary leader Ayatollah Ruhollah Khomeini. It said the captured boat "was loaded with weapons for (a) subversive objective".
Saudi Arabia said today it had seized weapons from a boat captured after shots were fired by security forces near an oil platform in the Arabian Gulf, at a time of tension with Iran and Qatar.
One boat was captured, while the other two escaped, a Saudi government statement said.
Aghababie said on Monday that a Saudi claim the boats entered the kingdom's waters had not been proven.
The Foreign Ministry spokesman said the Saudi coast guard's move to shoot and kill an Iranian fisherman was illegal and devoid of any justification.
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One of the boats was intercepted, while the two others managed to get away.
That statement made no mention of explosives and did not detail what type of weapons were found, though it said they were for "subversive purposes".
"The individuals who came face to face with the Saudi forces are simple fishermen and their boat is a fishing boat", Aghababaei was quoted by Iran's Young Journalists Club as saying. "They are from Bushehr and were fishing when they were arrested by the Saudi coastguard", said Aghababaie.
Saudi Arabia has been trying to cement its ties throughout the Muslim world against the backdrop of higher tensions with its Iranian rival.
Relations between Iran and Saudi Arabia, which compete for influence in the Middle East, have been increasingly strained over the opposite sides they have taken in the Syria and Yemen conflicts.