Turkish President Tayyip Erdogan said on Tuesday there were strong signs Jamal Khashoggi's killing was planned and attempts to blame it on intelligence operatives – Riyadh has suggested it was a rogue operation – "will not satisfy us."
In a speech to parliament, Erdogan did not mention Crown Prince Mohammed bin Salman, who some U.S. lawmakers suspect ordered the killing. But he said Turkey would not complete its investigation into Khashoggi's death until all questions were answered, Reuters reported.
He said Khashoggi was killed in a "savage way."
Khashoggi, a Washington Post columnist and critic of the crown prince, the kingdom's de facto ruler, disappeared three weeks ago after he entered the Saudi consulate in Istanbul to obtain documents for his upcoming marriage.
Turkish officials suspect Khashoggi was killed and dismembered inside the consulate by Saudi agents. Turkish sources say authorities have an audio recording purportedly documenting the killing of the 59-year-old.
Riyadh initially denied knowledge of his fate before saying he was killed in a fight in the consulate, a reaction greeted sceptically by several Western governments, straining relations with the world's biggest oil exporter.
Following the global outrage prompted by the journalist's disappearance, U.S. President Donald Trump's comments have varied from playing down Riyadh's role to warning of possible economic sanctions.
Meanwhile, Britain's Mirror Online reported with reference to Turkey's Haberler that parts of murdered journalist Jamal Khashoggi's body had been found at the Saudi consulate in Istanbul, a Turkish opposition leader claims.
Dogu Perincek, leader of Turkey's Rodina party, claimed in an interview that body parts were discovered in a well on the grounds of the consulate.
Turkish authorities have not offered a comment on the claims.