Yemen's Houthis said they hit Saudi-backed forces with missiles and drones on Friday.

Air defenses shot down drones launched by the Houthis over Marib, Yemen's state TV said.

The Houthis launched missiles and drones at camps and neighborhoods in Marib, killing two and wounding 14.

A Saudi official said the country expects attacks from Iraqi militias and Yemen's Houthis, supervised by Iran.

The official said intelligence reports indicated that civilian and economic sites could be targeted.

Saudi Arabia saw drones and missiles being moved, suggesting coordinated operations, and is prepared to respond.

Israel confirmed the death of two soldiers and struck back in Lebanon.

Qatar said mediators are making progress in ending the war between the US and Iran. They are working hard.

The warning shows that Saudi Arabia is increasingly involved in the regional conflict.

Saudi Arabia has faced attacks from Yemen's Houthis and Iraqi militias and struck back with the US.

Iraqi militias said they would respond to the Saudi strikes.

Saudi Arabia, Pakistan, and Turkey will sign a joint defense agreement in Mecca on Friday.

Reuters reported that Saudi Arabia said the Houthis and Iraqi militias attacked together under Iran's supervision.

The Saudi official said the reported threats are alarming as Riyadh seeks de-escalation and a settlement.

The official said the planned attacks could disrupt diplomatic efforts. Gulf states and Iran are closing in on a deal.

An attack by Yemen's Houthis on southern Saudi Arabia wounded 11 civilians on Thursday.

Iran said it has an agreement with Oman on the Strait of Hormuz shipping route.

A Saudi spokesperson said the attack in southern Najran Province injured seven Saudis and others.

There was no comment from the Houthis or Iran on the coalition's statement.

The Houthis claimed responsibility for an attack on Najran airport, part of a broader escalation.

They also killed at least 17 Yemeni government troops after attacking military deployments.

Riyadh's conflict with the Houthis has become entangled with the wider war, raising the stakes.