Istanbul's chief prosecutor's office said on Wednesday (Oct 31) that journalist Jamal Khashoggi was suffocated in a premeditated killing as soon as he entered Saudi Arabia's consulate four weeks ago, and his body was then dismembered and disposed of.
"The ongoing revelations about the murder of Saudi journalist Jamal Khashoggi, as well as certain Saudi actions related to Yemen and Lebanon, have raised further serious concerns about the transparency, accountability and judgement of current decision-makers in Saudi Arabia", the senators wrote.
Khashoggi's murder and the disposal of his remains was made "in accordance with plans made in advance", the office of Istanbul's chief prosecutor Irfan Fidan said in a statement today.
This is a developing story. Speaking at a packed memorial event in London, Cengiz said she held the Saudi government responsible for her fiancée's killing and called on the "evil criminals and their cowardly political masters" to face justice.
Celik also said it was not possible that Saudi officials had still not found the journalist's body after almost a month of investigations.
Boris Johnson accepted a £14,000 trip to Saudi Arabia from the country's foreign affairs ministry only a few days before the journalist Jamal Khashoggi was brutally murdered in the country's consulate in Istanbul.
Turkish President Tayyip Erdogan addresses members of parliament from his ruling AK Party.
Saudi Arabia has not commented directly on the prosecutor's visit and al-Mojeb did not respond to journalists' questions at the airport as he departed.
The statement said that al-Mojeb and the accompanying delegation were asked where Khashoggi's body was, if there was any evidence reached by Saudi authorities on premeditated plans for the killing, and who the local accomplice mentioned by Saudi officials was.
Khashoggi entered the consulate around 1pm on October 2 to retrieve paperwork for his upcoming marriage to his Turkish fiancee, Hatice Cengiz. A Saudi prosecutor said that 18 people were arrested in connection with the death.
Turkey has been pushing Saudi Arabia to help locate Khashoggi's body, which has not been found. She said that this eased some of his fears about how he would be treated before the fatal consulate trip on October 2.
US Secretary of State Mike Pompeo on Wednesday said the murder "violates the norms of worldwide law".
But Saudi Foreign Minister Adel Al Jubeir rejected the request, saying the men will be prosecuted in Saudi Arabia and dismissed media "hysteria".