With the aim of calming tensions, Iraq has invited Iran and Tehran’s Gulf Arab foes to a summit in Baghdad, Reuters reports.

Officials say the meeting, which will also discuss the war in Yemen, Lebanon’s collapse and a regional water crisis, could take a step towards Saudi-Iranian rapprochement even though they have yet to say what representation they will send.

Strains between long-term foes Saudi Arabia and Iran worsened after a 2019 assault on Saudi oil plants that briefly knocked out half of Saudi oil production. Riyadh blamed the attack on Iran, a charge Tehran denies.

The two countries are aligned with rival forces fighting a war in Yemen and severed ties in 2016 – although they resumed direct talks in Iraq in April this year.

Saudi Arabia, concerned that the Biden administration has revived nuclear talks which could lead to an easing of sanctions on Tehran, sees engagement as a way to contain tensions without abandoning its security concerns over attacks that it blames on Iran and its allies.

Iraqi officials hope that Iran’s new hardline President Ebrahim Raisi will attend the meeting, planned for Saturday, and expect ministers from Gulf States including Saudi Arabia and the United Arab Emirates will also come.

“Even if we bring the foreign ministers together at one table this could be considered a breakthrough to end the tensions between Iranians and the Gulf Arabs,” an official close to Iraqi Prime Minister Mustafa Al-Kadhimi said.

A politician close to the premier said Iraq, which hosted the private meetings earlier this year between Saudi and Iranian officials, had received “positive signals” from Tehran and Gulf Arab countries that they were ready for more direct talks.

Three other regional sources said they expect another round of direct talks between Iranian and Saudi officials on the sidelines of the summit, although they do not expect a breakthrough.

“We have always welcomed improving ties with regional countries such as Saudi Arabia, and it is a priority of our President Raisi’s foreign policy. Whether this will happen in Iraq next week, I seriously doubt it,” said one of the sources, a senior Iranian official.

Riyadh and Tehran began direct talks in April to contain tensions while global powers held negotiations on reviving a 2015 nuclear pact with Iran, which Saudi Arabia and its allies opposed for not addressing Tehran’s ballistic missile program and regional proxies.

So far Kuwait has been the only Gulf state to confirm its participation, sending its prime minister.

Egypt and Jordan, both allies of the Gulf Arab monarchies, have been invited to the Baghdad meeting along with Turkey and French President Emmanuel Macron.