(Reuters) - Khashoggi is alive, the British Daily Mail newspaper quoted a Saudi source as saying.
According to the newspaper, the Saudi writer in the Washington Post was kidnapped and then killed while in the Saudi consulate in Istanbul.
The source said: "After entering the embassy, Khashoggi was placed in a black Mercedes S-500 and a small white vehicle with four Saudi officials to Istanbul airport, where he was taken by private plane to Dubai and then Riyadh, where he is now detained.
Flight records show that a private jet belonging to Stream Rab, tail number HZ-SK2, landed in Istanbul at 3 am on 2 October, the day Khashoggi disappeared.
The plane departed later that day, stopped in Dubai and then moved to Riyadh.
The source said: Khashoggi is still alive, which contradicts allegations that he was killed in the Embassy of Istanbul.
The different version of the events can not be independently verified.
A friend of the writer also revealed that Khashoggi's encrypted messages had been read after they disappeared, although Khashoggi gave his Saudi phone to his fiancée before entering the Istanbul embassy - where he was to collect the divorce papers - he entered the building with his T- Mobile, which he used to communicate with confidential sources.
The source said embassy officials had taken the phone and handed it over to Saudi intelligence officials. Wattsp's records show that Khashoggi last looked at his message on his cell phone at 1:30 pm on Tuesday, the time the embassy entered.
However, the sender can not delete the texts sent to him after that time, which is marked as unread, indicating that the texts have been read through a program other than the Phone application.
Trump comments on Khashoggi's disappearance and reveals what he will do with Saudi Arabia
US President Donald Trump denied details of the disappearance of Saudi journalist Jamal Khashoggi, saying he had not spoken with Saudi officials.
"I will talk to the Saudis later," Trump told reporters at the White House.
Khashoggi, 59, disappeared on Tuesday after entering the Saudi consulate in Istanbul, while the Saudi consulate denied his detention and said he had left.
Saudi Crown Prince Prince Mohammed bin Salman also spoke of the detention crisis of journalist Jamal Khashoggi. In an interview with Bloomberg, he said he was ready to allow Turkey to inspect the consulate in Istanbul in search of Khashoggi.
The Saudi authorities allowed Tuesday the Turkish authorities to inspect the headquarters of the Saudi consulate in Istanbul as part of the cooperation in the investigations into the disappearance of Khashoggi. Turkish security sources said last Saturday that "15 Saudis, including officials, arrived in Istanbul by two planes and entered the consulate in conjunction with Khashoggi presence and then returned home. "
The Turkish authorities also announced that they had opened an official investigation into the disappearance of Khashoggi, who lost contact with him since Tuesday after entering the Saudi consulate in Istanbul.
The Turkish Foreign Ministry also announced on Monday the recall of the Saudi ambassador in Turkey to inform him of the need for cooperation between the two countries in the ongoing investigations into Khashoggi's disappearance.