Turkey has other "information and evidence" about the killing by Saudi officials after Khashoggi entered the consulate on October 2, and it will eventually reveal that information, Erdogan said without elaborating.
His comments come a day after Turkey said it wished to extradite 18 Saudi nationals authorities say were involved in the murder.
Merkel's office didn't elaborate on the warning in a statement following a call between the German leader and Saudi Arabia's King Salman. But his broader mention of the matter toward the end of his speech underscores the serious national security ramifications the incident poses for relations with a key USA ally.
"Failure of any nation to adhere to global norms and the rule of law undermines regional stability at a time when it is needed most".
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Pearce even scored Boston's ninth run on Xander Bogaerts' single, celebrating wildly with his teammates in quiet Chavez Ravine. They were four outsaway when the Red Sox's Jackie Bradley Jr . hit a home run against closerKenley Jansen for a 1-1 tie.
US President Donald Trump has called the case "one of the worst cover-ups in history". Turkish President Recep Tayyip Erdogan said Tuesday in an address to parliament that the murder was "savage" and pre-planned. "They're detained in Saudi Arabia, and the investigation is in Saudi Arabia, and they will be prosecuted in Saudi Arabia", Jubeir said at a regional defense forum in the Bahraini capital.
"Whether or not they acted in the name of the state, that remains to be discussed and investigated", she said. "And we will put in place mechanisms to ensure it doesn't happen again".
"What is the link between arms sales and Khashoggi?" he said, calling it "pure demagoguery to call for a halt" to exports over the killing.
Still, Mattis' speech also reflected the hard dilemma this has caused.
He also said Turkey has other "information and evidence" about the killing, which it will release "when the time is right".
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Istanbul police say that Khashoggi was tortured and then murdered, and his body dismembered with a bone saw. Khashoggi had gone to the consulate for paperwork related to his planned marriage to Cengiz.
Others in the USA, however, have condemned the Saudis for what has been called indiscriminate bombings that have slaughtered civilians in Yemen.
Riyadh says 18 people have been arrested and five senior government officials have been sacked as part of the investigation.
Key mysteries remaining include whether the killing was carried out with the knowledge of the crown prince, who denies it, and the location of Khashoggi's body.
Saudi Arabia said on Thursday the killing of Khashoggi, a Washington Post columnist and a critic of Crown Prince Mohammed bin Salman, was premeditated, reversing previous statements that it was unintended.
In his remarks at the Manama Dialogue security conference, Mattis went through a list of what he described as disruptive Iranian behavior - a message most Gulf allies will view positively since they share similar concerns about Iran's increasing influence in Syria and Iraq.
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One week after the Saudis admitted culpability for his death, the U.S.is weighing further action against its partner, despite its importance to the Trump administration's foreign policy.