Saudi Arabia has arrested 17 suspected Islamic State sympathisers accused of plotting attacks on religious officials, security forces, civilian districts and economic and military targets, the interior ministry said on Monday.

A survey highlighted that more than one-third of all Saudi-led air raids on Yemen have hit civilian sites, such as school buildings, hospitals, markets, mosques and economic infrastructure.

A senior Saudi official, responding to Iranian criticism of Riyadh's management of the haj pilgrimage, urged Iran to end what he called wrong attitudes toward Arabs and warned it against any use of force in its rivalry with the kingdom.

A senior U.S. diplomat has presented a proposal for a comprehensive ceasefire in Yemen to the country's dominant Houthis at a meeting in Oman, a member of the Houthi negotiating team said on Thursday.

Iran's Revolutionary Guard launched a new 55-metre-long naval ship on Tuesday that is capable of transporting a helicopter and up to 100 men, according to the website of state TV.

Saudi Arabia's King Salman said on Tuesday the haj should not be used to achieve sectarian or political aims, remarks likely to be seen as aimed at rival Iran, which is involved in a public quarrel with Riyadh over the management of the pilgrimage.

Qatar's Emir called for good neighbourly relations between Gulf Arabs and Iran in a telephone call with Iranian President Hassan Rouhani, Qatar media reported, amid fresh strains between regional rivals Saudi Arabia and Iran over the haj pilgrimage.

President Barack Obama would veto a bill passed by both houses of Congress that would allow survivors and families of victims of the Sept. 11 attacks to sue the government of Saudi Arabia for damages, White House spokesman Josh Earnest said on Monday.

The Saudi-dominated Gulf Cooperation Council (GCC) on Monday condemned a law passed by the United States Congress last week that would allow the families of victims of the Sept. 11 attacks to sue the kingdom's government for damages.

US House of Representatives passed legislation Friday allowing relatives of victims of 9/11 attacks to sue Saudi Arabia for compensation.

Iran has kept to a nuclear deal it agreed with six world powers last year limiting its stockpiles of substances that could be used to make atomic weapons, a report by the U.N. nuclear agency found.

Saudi Arabia's top religious authority said Iran's leaders were not Muslims, drawing a rebuke from Tehran in an unusually harsh exchange between the regional rivals over the running of the annual haj pilgrimage.

Four U.S. senators introduced a joint resolution on Thursday seeking to block the U.S. sale of $1.15 billion of Abrams tanks and other military equipment to Saudi Arabia, citing issues including the conflict in Yemen.

With Iranians blocked from this month's hajj pilgrimage, their supreme leader Ayatollah Ali Khamenei issued a furious rebuke to rival Saudi Arabia, saying the Muslim world should challenge its management of Islam's holiest sites.

Head of US Joint Parliamentary Committee to investigate the September 11 attacks, Bob Graham...

The leader of Yemen's Iran-allied Houthi faction accused the United States of providing logistical support and political cover for Saudi-led air strikes in the 18-month Yemeni conflict.

Iraq is on track to meet its objective of retaking the city of Mosul from Islamic State...

Saudi Arabia's foreign minister said on Wednesday the Iranian-allied Houthi movement...

Yemen’s Houthis ready to restart peace talks with country’s exiled government if Saudi-led coalition stopped attacking and besieging Houthi-held territories.

Iraq asked Saudi Arabia to replace its ambassador in Baghdad after his comments about alleged persecution of Sunni Muslims.