The custodian of the two holy mosques (King Salman) and the crown prince are a red line, Saudi Foreign Minister Adel al-Jubeir said
Earlier this week, a Saudi prosecutor exonerated the crown prince of involvement in Jamal Khashoggi's brutal murder
Khashoggi, a Washington Post columnist, had gone to the consulate to obtain documents necessary to marry his Turkish fiancee
The Saudi government is accelerating its investigation and prosecution of suspects in the Khashoggi affair
Khashoggi, 59, a critic of the crown prince, was killed and dismembered in the Saudi consulate in Istanbul on October 2
Adel al-Jubeir said Riyadh had its own 'investigative body' and would 'reject' an independent investigation
The journalist's body parts were then handed over to an agent outside the consulate grounds, the spokesman said
Bolton emphasised that Trump has demanded a full investigation from the Saudis
The recording, shared last month with the CIA director, Gina Haspel, is seen by intelligence officials as some of the strongest evidence linking Prince Mohammed to the killing of Khashoggi
Samples taken from the drains at the Saudi consulate in Istanbul showed traces of acid, pro-government daily Sabah said
While Riyadh officials have admitted the murder was planned, they have so far declined to release details of the whereabouts of the 59-year-old journalist's missing body
Khashoggi's sons voiced worry that the work of their father was being distorted for political reasons
The murder has placed strain on Saudi Arabia's relationship with the United States and other western countries
Meanwhile, a Turkish official said he believes Khashoggi's body was dissolved in acid or other chemicals after it was mutilated
Turkey's chief prosecutor on Wednesday confirmed for the first time that Jamal Khashoggi was strangled as soon as he entered the consulate on Oct 2 as part of a planned hit
The killing of Khashoggi has significantly raised tensions between Saudi Arabia and Turkey
Khashoggi went missing on October 2, after stepping into Saudi Arabia's consulate in Istanbul, Turkey
The Saudis, under intense pressure to explain Khashoggi's whereabouts, have offered conflicting accounts
Singling out Trump, she urged him to 'help reveal the truth and ensure justice be served'
Mattis warned that "the murder of Jamal Khashoggi in a diplomatic facility must concern us all greatly"