Top Senate lawmakers wrote to President Trump Wednesday, calling on him to consider sanctioning Saudi Arabia, including its highest-ranking officials, over missing journalist Jamal Khashoggi, who was a critic of the government and has not been seen since entering the Saudi Arabian consulate in Turkey on Oct. 2.

The letter, sent by Senate Foreign Relations Committee Chairman Bob Corker, R-Tenn., and a group of more than 20 bipartisan lawmakers, requests that Trump “make a determination on the imposition of sanctions … with respect to any foreign person responsible for such a violation related to Mr. Khashoggi.”