Yemen's Iran-aligned Houthis struck a power station in Saudi Arabia's al-Shuqaiq city, in the southern province of Jizan, with a cruise missile, their Al Masirah TV said on Wednesday, but there was no immediate confirmation from Saudi authorities.

Saudi Crown Prince Mohammed bin Salman and other senior officials should be investigated over the murder of journalist Jamal Khashoggi given credible evidence against them, a U.N. rights investigator said on Wednesday.

Iran has shot down a U.S. drone which the elite Revolutionary Guards said on Thursday was flying over southern Iran, raising fears that a major military confrontation could erupt between Tehran and Washington.

The U.S. Senate will vote on Thursday on legislation seeking to block President Donald Trump's plan to complete $8 billion in arms sales to Saudi Arabia and the United Arab Emirates, lawmakers said, making clear they want a harder line against what they see as human rights abuses by the two countries.

The German government has given the green light for arms shipments worth over €1 billion so far this year to the Saudi-led coalition fighting in Yemen. The approval comes despite export restrictions being in place.

A rocket landed near an Iraqi military base hosting U.S. forces in the northern city of Mosul late on Tuesday, an Iraqi military statement said, the second such incident in two days.

The commander of Iran's elite Revolutionary Guards Corps said on Tuesday that Iran's ballistic missiles were capable of hitting "carriers in the sea" with great precision.

The United Nations extrajudicial executions investigator, Agnes Callamard, will issue her report on the murder of Saudi journalist Jamal Khashoggi on Wednesday, a statement said.

Yemen's Houthi movement and the United Nations have agreed on a mechanism to inspect ships docking at Hodeidah following the group's withdrawal from three Red Sea ports under a U.N.-sponsored deal, a Houthi official and a U.N. source said.

United Nations food chief David Beasley warned on Monday that a phased-suspension of food assistance in Yemen was likely to begin later this week over a diversion of aid and lack of independence in Houthi-controlled areas.

Acting U.S. Defense Secretary Patrick Shanahan announced on Monday the deployment of about 1,000 more troops to the Middle East for what he said were defensive purposes, citing concerns about a threat from Iran.

"Saudi Arabia does not want a war in the region but will not hesitate to deal with any threat to its people and sovereignty," Saudi Crown Prince Prince Mohammad bin Salman told Asharq Al-Awsat daily newspaper.

Saudi Arabia and the UAE on Saturday called for decisive action to protect energy supplies amid a tense US-Iran standoff as two tankers attacked in a vital Gulf shipping channel headed to port.

Iran will continue scaling back compliance with a nuclear deal unless other signatories to the pact show “positive signals”, the Iranian president said on Saturday as tensions with the United States escalated over tanker attacks in the Gulf region.

Frontline's oil tanker Front Altair said that the vessel attacked in Oman gulf on Thursday remains afloat and is being aided by a salvage vessel.

The International Court of Justice on Friday denied a request by the United Arab Emirates for special measures against Qatar to relieve a bitter two-year-old crisis.

The Kokuka Courageous, one of two tankers attacked with explosives on Thursday in the Gulf of Oman, is now safely under tow and heading towards the United Arab Emirates' port of Kalba, south of Fujairah, the ship's operator said on Friday.

The attack on two oil tankers in the Gulf raised tension in the region.

Saudi Arabia's air defence forces intercepted five drones launched by Yemen's Houthis at Abha airport and the city of Khamis Mushait, a Saudi-led coalition spokesman said in a statement released by the Saudi Press Agency early on Friday.

The Saudi Arabian stock market snapped a five-day winning streak as attacks on tankers in the Gulf of Oman dampened investor sentiment in the region, while all major Gulf markets also declined.