Saudi Arabia said on Monday that it captured three Iranian Revolutionary Guards aboard an explosive-laden boat heading to an oil platform in the Gulf, further ratcheting up tensions in the region.
"This was one of three vessels which were intercepted by Saudi forces".
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".
There was no immediate indication whether the capture of the vessel was related to a maritime incident in the Gulf on Friday reported by Iranian media.
"Accordingly and without establishing whether the Iranian boats had crossed Saudi borders, the coast guard of this country opened fire on the Iranian boats and an Iranian fisherman was killed after being shot in the waist".
One boat was captured, while the other two escaped, a Saudi government statement said.
Fishing is common enough in these waters, though Saudi Arabia's massive distrust of Iran and the incident's proximity to a lucrative off-shore oil field appears to be tailor-made for the Saudis to interpret the incursion as some broader plot against them.
They "are now being questioned by Saudi authorities", the information and culture ministry said in a statement, at a time of already-heightened tensions with Iran. The other two escaped.
"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.
On Sunday, Iran has launched six ballistic missiles into Syria, targeting positions of Islamic State (IS, formerly ISIS/ISIL) terrorists in retaliation for the twin attacks in Tehran earlier this month.
Iran accused Saudi Arabia of being involved in the attack, a charge denied by Riyadh.