Since his disappearance, the kingdom had rejected Turkish fears he was killed and dismembered there as "baseless", but growing worldwide pressure and comments by US officials up to President Donald Trump appears to have forced the kingdom to acknowledge the slaying.
"The results of the preliminary investigations revealed that the discussions that took place with the citizen Jamal Khashoggi during his presence in the Consulate of the Kingdom in Istanbul by the suspects did not go as required and escalated negatively which led to a fight between them and the citizen Jamal Khashoggi, which aggregated (sic) the situation and led to his death, may God rest his soul, in addition to their attempt to hide what happened and to cover it up".
"The case of the disappearance of the citizen Jamal bin Ahmed Khashoggi drew the attention of the Kingdom of Saudi Arabia at the highest levels, and due to the circumstances surrounding his disappearance, the Kingdom took the necessary procedures to clarify the truth and began by dispatching a security team to Turkey on 6 October 2018 to investigate and cooperate with counterparts in Turkey".
The admission that Khashoggi died at the hands of Saudi officials after weeks of vehement denials by the Gulf kingdom comes after President Donald Trump said that the United States, which is Saudi Arabia's biggest backer, could impose sanctions if it was proved the journalist was killed.
Saudi Arabia confirms that dissident journalist Jamal Khashoggi was killed inside the kingdom's consulate in Istanbul.
The Trump administration has been notably slow to criticise Saudi Arabia, despite mounting evidence that Khashoggi, a critic of the Islamic petro-state's powerful crown prince, vanished after entering the Saudi consulate in Istanbul.
While it fired officials close to Crown Prince Mohammed bin Salman, the kingdom stopped short of implicating the heir-apparent of the world's largest oil exporter. Khashoggi had gone to the consulate to get papers he needed to be married.
The prosecutor's investigation also pointed out that the discussions that took place between Khashoggi and those who met him while he was in the consulate in Istanbul led to a brawl which led to his death.
He had been criticised by Saudi authorities for being too progressive and he had described Prince Mohammed as a "brash and abrasive young innovator" - and even said he was "acting like Putin".
Saudi Arabia, the statement mentioned, expressed "deep regret at the painful outcome" and said it would bring the perpetrators "to justice by referring them to the competent courts in [the] Kingdom".
The Associated Press, citing an unnamed Turkish official, reported Friday that investigators there were looking into whether "the remains of".
Turkish crime scene investigators this week searched the Saudi Consulate building in Istanbul and the nearby residence of the Saudi consul general, and came out carrying bags and boxes.
Trump has said that the consequences for the Saudis "will have to be very severe" if they are found to have killed him, but has insisted that more facts must be known before making any judgements.
The fate of Khashoggi, a USA resident and critic of Saudi policy, had remained unclear more than two weeks after he vanished.