ISTANBUL-Turkish media published images Wednesday of an alleged 15-member Saudi "assassination squad" and video of suspicious movements at the Saudi Consulate in Istanbul following journalist Jamal Khashoggi's disappearance a week ago, putting new pressure on the kingdom amid growing worldwide concern for the writer.
He declined to comment on Khashoggi's possible fate, but said "we can not let this happen; to reporters, to anybody".
"It's a very sad situation, this is a bad situation", Trump said.
The worldwide implications of Mr Khashoggi's disappearance deepened after the "Washington Post" reported that United States intelligence was aware the Saudi government was planning to kidnap the journalist.
"We're being very tough". He's got a vision for the country that I think is extraordinary for a young leader.
Corker's comments highlight a growing tension between Congress, which is calling for action on Khashoggi, and the White House, where President Donald Trump has indicated he's aware of Saudi responsibility but signaled that he's unwilling to take punitive steps, particularly ending arms sales to the kingdom because of the United States jobs they generate.
The Spectator reported claims that Mr Khashoggi had been offered a role as an adviser if he returned to Saudi Arabia but had declined because of "moral and religious" principles. No one has produced any such footage of Khashoggi leaving the consulate.
Paul said he hopes Khashoggi's disappearance " motivates everybody to reassess our kinship and everything we do with Saudi Arabia".
More than 20 Republican and Democratic senators instructed Trump to order an investigation into Khashoggi's disappearance under legislation that authorizes imposition of sanctions for perpetrators of extrajudicial killings, torture or other gross human rights violations.
The Washington Post reported on Wednesday evening that USA intelligence intercepts outlined a Saudi plan to detain Mr Khashoggi.
Turkish officials say a Saudi security team lay in wait for the journalist, and then killed and dismembered him.
The Washington Post reported that U.S. intelligence had intercepted communications of Saudi plans to kidnap Khashoggi, a critic of the kingdom and Crown Prince Mohammed bin Salman who fled into exile past year.
Asked about the invitation, Cengiz told Turkish state broadcaster TRT on Thursday: "I am not thinking anything on this subject at the moment".
Khashoggi's fiancé Khadija Cengiz has broken her silence over the disappearance of the Saudi critic.
Jamal Khashoggi has been missing since visiting the Saudi Consulate in Istanbul Oct. 2.
The Saudi ambassador to Washington, Prince Khalid bin Salman bin Abdulaziz, has described the allegations as "malicious leaks and grim rumors" and said the kingdom is "gravely concerned" about Khashoggi.
Ties between Turkey and Saudi Arabia have been tense over regional political differences, although the kingdom is a major investor in the Turkish economy.
Mr Erdogan was quoted by Turkish media today as telling journalists flying with him back home from a visit to Hungary that "we can not remain silent to such an incident".
Trump expressed reservations about withholding arms sales to Saudi Arabia.
"The recent disappearance of Saudi journalist and Washington Post columnist Jamal Khashoggi suggests that he could be a victim of a gross violation of global recognized human rights", the letter said. We have a country that's doing probably better economically than it's ever done before. The administration also relies on Saudi support for several aspects of its Middle East agenda.