The revelations came just hours after Saudi Arabia's chief prosecutor left Istanbul, and the Turkish prosecutor's office said it was "obliged" to reveal the details after the talks produced "no concrete results".
Earlier the General Prosecutor's office of Istanbul said that Khashoggi was strangled immediately after October 2 went to the Consulate General of Saudi Arabia.
The killing of Khashoggi, a former Saudi court insider, has also focused global attention on the policies of Saudi Crown Prince Mohammed Bin Salman. As a columnist for the Washington Post, Khashoggi had frequently criticized the Saudi government and Saudi Crown Prince Mohammed bin Salman.
Turkey says a Saudi hit squad - including a member of the prince's entourage - travelled to Istanbul to kill the journalist and then tried to cover it up.
After weeks of denials and changing accounts of what happened, Saudi officials recently admitted that Khashoggi's murder was premeditated.
"Because the chief prosecutor is working to save crown prince by covering up the investigation rather than shed light on the murder". Bachelet called for the two countries to work together and for Khashoggi's body to be produced.
The statement said Turkey renewed its request for the 18 suspects to be extradited.
Mr Khashoggi, a Saudi national working for the U.S. press, was a well-known critic of his home country's rulers.
Turkish officials had previously revealed details about the October 2 death of Khashoggi, including the strangling and dismemberment but always anonymously and usually through leaks to the Turkish media.
Meanwhile, Khashoggi's fiancée has called on US President Donald Trump and other leaders to ensure that his death in Istanbul is not covered up.
The murder was a violation of worldwide law, US Secretary of State Mike Pompeo said Wednesday.
"The whole truth must be revealed", Foreign Minister Mevlut Cavusoglu said this week.
The case has put into focus the West's close relationship with Saudi Arabia - a major arms buyer and lynchpin of Washington's regional plans to contain Iran - given the widespread scepticism over its initial response.
Trump meanwhile has called the case "one of the worst cover-ups in history", but warned against halting a Saudi arms deal, saying it would harm USA jobs.
- Heidi Klum is the Queen of Halloween as she unveils Shrek costume
- Austria to withdraw from United Nations migration agreement
- Twitter Could Remove ‘Like’ Button to Promote Healthy Debates
- HEAVEN: Reese's Builds Machine To Fix All Your Halloween Candy Woes
- Oil prices fall on rising supply, trade tensions
- Brazilian footballer Daniel Correa murdered, found nearly beheaded with genitals severed
- Jose Mourinho's charge for abusive language dropped by FA
- With the only Russian aircraft carrier has been a serious emergency
- German ex-nurse admits to killing 100 patients
- Fading the College Football Playoff rankings and three picks for Week 10