"If Saudi authorities surreptitiously detained Khashoggi it would be yet another escalation of Crown Prince Muhammad bin Salman's reign of repression against peaceful dissidents and critics", HRW's Middle East and North Africa director, Sarah Leah Whitson, said in a statement late on Thursday.
Since then, reports as to his whereabouts have been conflicting.
Addressing a group of reporters, the Crown Prince said, 'Actually we will pay nothing for our security.The Kingdom pays for all its military equipment from the US.
Istanbul, Oct 6 A Saudi columnist remained missing as supporters rallied outside the Saudi consulate in Istanbul calling for his "release" despite Riyadh's denials that he was being held there.
"The consulate confirmed that it is carrying out follow-up procedures and coordination with the Turkish local authorities to uncover the circumstances of the disappearance of Jamal Khashoggi after he left the consulate building", the statement said, without elaborating.
"Since yesterday, contacts have been continuing between Turkey and Saudi Arabia to overcome the problem related to Khashoggi", the source said.
"My understanding is he entered [the consulate] and he got out after a few minutes or one hour", the Crown Prince told Bloomberg on Wednesday.
As the mystery persisted, the Turkish foreign ministry summoned Saudi Arabia's ambassador "for an explanation, "media outlets reported". "We don't know whether he is alive or dead". He entered the building of the consulate, he has to come out of there safe and sound.
Suspicions about Riyadh's involvement in the disappearance are heightened by a number of similar incidents, including the surprise resignation of the Lebanese prime minister, Saad Hariri, previous year while he was visiting Saudi Arabia. Here I ask the Turkish government, as any normal person would, "where" is Mr Jamal? He is not the first or only high-profile dissenter to have been jailed, and even stated in his writing that he would likely have been arrested if he had stayed in Saudi Arabia. "Until otherwise demonstrated, he is still inside the Saudi consulate in Istanbul and the Saudi authorities are responsible for his safety and well-being", she said in a statement.
On his relations with Trump, Prince Mohammed said: "I love working with him. I see him as not only a colleague in our field but an inspiration, too", Attiah wrote. "We have achieved a lot in the Middle East, especially against extremism, extremist ideologies, terrorism and ISIS disappeared in a very short time in Iraq and Syria, and a lot of extremist narratives have been demolished in the past two years, so this is a strong initiative". What else can you tell us about Trump's comment and reactions to it?