Saudi Crown Prince Mohammed bin Salman told Iranian President Masoud Pezeshkian that Riyadh will not allow its airspace or territory to be used for military actions against Tehran, state news agency SPA reported on Tuesday.
MBS "affirmed during the call the kingdom's position on respecting the sovereignty of the Islamic Republic of Iran, and that the Kingdom will not allow its airspace or its territory to be used for any military actions against" Iran, Saudi Arabia's foreign ministry said in a statement.
The Saudi crown prince also affirmed his country's support for any "efforts that would resolve differences through dialogue" to bolster security and stability in the region.
Earlier, Iranian media reported that Pezeshkian told the Saudi crown prince that Tehran welcomes any process within the framework of international law that prevents war.
The statement by the Saudi crown prince follows a similar statement by the United Arab Emirates (UAE) that it would not allow any military action against Iran using its airspace or territorial waters.
The UAE foreign ministry in a statement on January 26 said it "has reaffirmed the United Arab Emirates' commitment to not allowing its airspace, territory or waters to be used in any hostile military actions against Iran".
The UAE hosts thousands of US personnel at Al Dhafra airbase near the capital Abu Dhabi, one of several American military sites in the Gulf.
The UAE also refuses to provide logistical support for attacks, the statement said, adding that "dialogue, de-escalation, adherence to international law, and respect for state sovereignty" were the best way to address "current crises".
Uncertainty over the possibility of military action in Iran has lingered after US President Donald Trump said last week that an "armada" was heading toward the country but that he hoped he would not have to use it.
Trump's warnings to Tehran were against killing protesters or restarting its nuclear programme, but the countrywide demonstrations have since abated.
A US aircraft carrier and supporting warships have arrived in the Middle East, two US officials told Reuters on Monday, expanding Trump's capabilities to defend US forces, or potentially take military action against Iran.
The US has also announced a major multi-day Air Force exercise in the Middle East.
The exercise will "demonstrate the ability to deploy, disperse, and sustain combat airpower across" the Middle East, the US Air Force component of Central Command, which is responsible for American forces in the region, said in a statement.
No date or exact location for the exercise were released.