Saudi Arabian Foreign Minister Faisal bin Farhan bin Abdullah arrived in the Pakistani capital Islamabad on Sunday to attend a quadrilateral ministerial meeting focused on recent regional developments amid the ongoing U.S.-Israeli military campaign against Iran.

The foreign ministers of Pakistan, Turkey and Egypt will also participate in the Islamabad meeting. The gathering aims to de-escalate tensions and enhance stability in the region, the Saudi Foreign Ministry said in a statement posted to X.

-ABC News' Somayeh Malekian

The speaker of the Iranian parliament, Mohammad Bagher Ghalibaf, said in a statement on Sunday that Iranian forces are preparing for a U.S. ground operation despite ongoing diplomatic maneuvers.

"The enemy openly sends messages of negotiation and dialogue and secretly plans a ground attack," Ghalibaf said in a message addressed to the Iranian people on the 30th day of the war, the semi-official ILNA news agency reported Sunday.

Ghalibaf said that Tehran will continue its regional attacks, adding that the Iranian military is "waiting for the arrival of American soldiers on the ground to set fire to them and punish their regional partners forever."

"These days, we hear different words and statements from enemy officials about negotiations. America expresses its desires and announces what it has not achieved in the war as a list of 15 points and seeks them in diplomacy," Ghalibaf said.

"As long as the Americans seek Iran's surrender, your children's response to these American aspirations is clear: 'We will not accept humiliation,'" he added.

-ABC News' Somayeh Malekian

At least 3,461 people have been killed in Iran by U.S.-Israeli strikes since the war began on Feb. 28, the U.S.-based Human Rights Activists News Agency (HRANA) reported on Saturday.

The reported toll includes 1,551 civilians and 1,208 military personnel, while the status of 702 victims remains undetermined. According to HRANA, 236 of the victims were children.

ABC News cannot independently verify HRANA's data. However, HRANA has been reliable in counting deaths during previous rounds of unrest in Iran. HRANA says their data is collected from a combination of field reports, local contacts, medical and emergency sources, civil society networks and open-source materials -- including publicly available images, videos and official statements.

Official Iranian government channels have not been providing regular or comprehensive casualty figures from the current conflict. But the Iranian Health Ministry said on Saturday that 244 women and 231 children have been killed in the war so far, in a statement carried by the Islamic Republic News Agency.

-ABC News' Somayeh Malekian

The Bahrain Defence Force said on Sunday that its air defenses intercepted another six drones launched from Iran during the previous 24 hours.

Bahrain's interception tally since Feb. 28 is now 391 drones and 174 ballistic missiles, the force said.