Turkish president Recep Tayyip Erdogan intensified the pressure on Saudi Arabia over the death of Jamal Khashoggi, casting doubts on Riyadh’s claims that the journalist died in a fist-fight and saying he would reveal what happened in “full detail”.

Saudi Arabia finally admitted at the weekend that Khashoggi was killed in the kingdom’s consulate in Istanbul this month after two weeks of denials. It said it had detained 18 unidentified Saudis over the incident. But Riyadh has changed its story several times and its claims that the 60-year-old columnist was killed in a fight have been widely condemned as lacking credibility.

Turkish officials have previously said they believe Khashoggi was killed by a 15-man Saudi hit team that flew into Istanbul and later dismembered his body. Mr Erdogan, who has been restrained in his comments over the past two weeks, referred to that version of events in a speech on Sunday.