TUNIS, Tunisia -- The Turkish foreign minister says Turkey is working with other countries toward a possible U.N. investigation into the killing of Saudi writer Jamal Khashoggi.

Speaking Monday during a visit to Tunisia, Foreign Minister Mevlut Cavusoglu said Turkey is "actively" continuing its investigation and "collaborating" with other U.N. members. He didn't elaborate.

Cavusoglu urged Saudi authorities to share information about their investigation "with us and the whole world." He said Turkish authorities notably want the Saudis to explain what happened to Khashoggi's remains and who was in charge of handling them.

Khashoggi, a columnist for The Washington Post, wrote critically about Saudi Crown Prince Mohammed bin Salman. A team of Saudi agents killed him at the Saudi Consulate in Istanbul on Oct. 2.Turkey has said it might seek a U.N.-led investigation.