The Saudi embassy in Washington on Monday canceled its annual National Day reception in an email that gave no explanation for the move, which comes amid a diplomatic crisis over the disappearance of journalist Jamal Khashoggi in Turkey.

U.S. Vice President Mike Pence said on Wednesday the United States is ready to help in any way in the investigation of the disappearance of prominent Saudi journalist Jamal Khashoggi.

U.S. authorities are investigating whether Standard Chartered breached Iran-related compliance rules as recently as 2013, a year after it settled with them over earlier allegations of breaches and pledged to improve internal controls.

Iran's crude exports fell further in the first week of October, according to tanker data and an industry source, taking a major hit from U.S. sanctions and throwing a challenge to other OPEC oil producers as they seek to cover the shortfall.

U.S. President Donald Trump said on Monday he was concerned about reports of Saudi Arabian journalist Jamal Khashoggi, who has been missing since last week and Turkish sources have said that authorities believe he was killed inside the Saudi consulate in Istanbul.

The United States is pulling some of its anti-aircraft and missile batteries out of the Middle East, the Wall Street Journal reported on Wednesday, citing U.S. military officials.

The American National Interest website considered that the Royal Bahraini Air Force will become the first operator of the most advanced and capable version of F-16 ever designed. Websites said that the $1.2 billion contract to buy fighters came to allow Bahrain keep pace with other regional competitors such Qatar.

The United States on Thursday welcomed Saudi Arabia’s contribution of $100 million to help stabilize parts of Syria no longer held by Islamic State, which comes as the Trump administration looks to cut back on foreign aid.

The US Department of State added the Bahraini Qassim Al-Muamen to the terrorist list being a member in “Saraya Al-Ashtar”.

The sharp diplomatic row between Saudi Arabia and Canada has left Washington -- partners and allies of both -- in a bind, but the State Department on Tuesday nevertheless urged Riyadh to respect due process for detained activists.

Caught in the crossfire between its key allies Tehran and Washington, Iraq's economy could suffer the heaviest collateral damage from the US reimposing sanctions against Iran.

German Foreign Minister Heiko Maas warned Wednesday that US President Donald Trump’s decision to reimpose sanctions on Iran could further destabilise the Middle East and boost radical forces in the region.

Iraq does not agree with U.S. sanctions against Iran but will abide by them to protect its own interests, Prime Minister Haider Al-Abadi said on Tuesday.

The first salvo of sweeping US sanctions against Iran will be reimposed later Tuesday as the two countries traded fresh accusations and Tehran dismissed Donald Trump's offer of talks on a new nuclear deal.

The United States has asked the Saudi government for more details on the detention of activists and urged it to respect due process, a State Department official said on Monday, in the first comments by Washington since a dispute erupted between Riyadh and Ottawa over the arrest of rights campaigners.

US Secretary of State Mike Pompeo vowed Sunday that the United States would "enforce the sanctions" it is reimposing against Iran after President Donald Trump pulled out of the 2015 nuclear pact.

Iran waved away US President Donald Trump's claims that talks with the country's leaders were imminent, saying "threats, sanctions and PR stunts won't work".

US President Donald Trump suggested Tuesday that talks with arch foe Iran were imminent, but the idea has been criticized in Tehran, with the country's foreign minister warning that "PR stunts won't work."

President Trump said Monday that he would meet Iran's leaders “without preconditions” and “anytime they want”, one week after tensions escalated between Washington and Tehran.

The United States is looking to "build some momentum" towards resolving the Gulf crisis ahead of a possible summit in the autumn, a US diplomat said Tuesday.