The CIA has concluded that Saudi Crown Prince Mohammed bin Salman ordered the killing of journalist Jamal Khashoggi inside the country's consulate in Istanbul last month, The Washington Post reported Friday.

The agency has high confidence in its assessment, the newspaper reported. The CIA reportedly examined multiple sources of intelligence in reaching its conclusion, including a call between the crown prince's brother Khalid bin Salman and Khashoggi.

Khalid, who is the Saudi ambassador to the U.S., reportedly told Khashoggi, who was a columnist for the Post, that he should go to the country's consulate in Istanbul to get documents for his marriage to a Turkish woman, offering assurances that he would be safe.

ADVERTISEMENT People familiar with the call, reportedly intercepted by U.S. intelligence, told the Post that it wasn't clear if Khalid knew Khashoggi would be killed when he returned to the consulate, but said that he made the call at the direction of his brother.

Turkish officials have said that he was killed by a Saudi hit squad shortly after entering the consulate, and was then dismembered and his body removed from the premises. The Saudi government issued several conflicting explanations for his disappearance before eventually acknowledging that he was killed inside the consulate, while denying that the crown prince was involved. Saudi Arabia’s public prosecutor said this week that it would seek the death penalty for five suspects allegedly involved in the killing. Khashoggi's death sparked an international firestorm, with bipartisan members of Congress calling on the Saudi royal court to be punished.