Turkish President Recep Tayyip Erdogan announced that he will reveal details about the Turkish investigation of the alleged murder of the journalist on Tuesday.
Reflecting worldwide scepticism over its account, a senior Saudi government official has laid out a new version that in key respects contradicts previous explanations.
Hatice Cengiz, a Turkish national, waited for Mr Khashoggi outside the Saudi consulate in Istanbul on he day he disappeared and she alerted authorities after he failed to show up again.
Mr Hunt acknowledged that the United Kingdom had close security and business links with Saudi Arabia but "if the appalling stories we are reading turn out to be true" the United Kingdom "will act accordingly".
In an interview with Russian news agency TASS published on Monday, Saudi Energy Minister Khalid Al-Falih said "There is no intention" when asked if there would be a repetition of the 1973 oil embargo amid the global outcry over the killing of the Saudi journalist.
Iran had so far stayed quiet on the Khashoggi case, with Larijani's remarks being the first official reaction as Tehran has watched the furore over the Saudi journalist's fate plunge its rival into crisis.
Five Turkish employees of the Saudi consulate in Istanbul are giving statements as witnesses under an investigation into the killing of Saudi journalist Jamal Khashoggi, Turkish broadcaster NTV said today.
"But Saturday, in an interview with The Washington Post, Trump said, "Obviously there's been deception and there's been lies".
Foreign Affairs Minister Chrystia Freeland condemned the murder of Khashoggi on Monday, saying the various Saudi explanations for his death lacked credibility and consistency. Numbers provided by the stock exchange on Sunday show that Saudi institutional investors were net buyers of 7.8 billion riyals in the week ended October 18, the highest value since June 2017.
"Saudi Arabia is a very responsible country, for decades we used our oil policy as a responsible economic tool and isolated it from politics", Mr Al Falih said.
He said: "They made the mistake when they killed Jamal Khashoggi in the consulate and they tried to cover up for it".
Turkish officials dispute this and have leaked information suggesting that 15 Saudi agents murdered Khashoggi soon after he entered the diplomatic mission for an administrative errand.
Saudi Arabia's explanation that Khashoggi was killed in a "fistfight" and 18 Saudis have been detained has been met with worldwide scepticism and allegations of a cover-up created to absolve Prince Mohammed of direct responsibility.
In the past, German military exports to Saudi have mostly consisted of patrol boats, and they have been far lower than those from Britain and France, who have not indicated they want exports to stop.
Citing people briefed on the call, the newspaper says the crown prince asked Kushner, "Why the outrage", and noted that "government officials and business leaders had turned from lavishing praise on the prince to criticizing him".