ANKARA, Turkey — Saudi officials murdered journalist Jamal Khashoggi in their Istanbul consulate after plotting his death for days, Turkey’s president said Tuesday, contradicting Saudi Arabia’s explanation that the writer was accidentally killed. He demanded that the kingdom reveal the identities of all involved, regardless of rank.

President Recep Tayyip Erdogan also said he wants Saudi Arabia to allow 18 suspects that it detained for the Saudi’s killing to be tried in Turkish courts, setting up further complications with the Saudi government, which has said it is conducting its own investigation and will punish those involved. Saudi Arabia has described the suspects as rogue operators, even though officials linked to Saudi Arabia’s assertive Crown Prince Mohammed bin Salman have been implicated in the killing.