ISTANBUL (AP) — Britain, Germany and France have issued a joint statement condemning the killing of writer Jamal Khashoggi, saying there is an “urgent need for clarification of exactly what happened.”

In a statement Sunday, the governments said attacks on journalists are unacceptable and “of utmost concern to our three nations.” They said the “hypotheses” proposed so far in the Saudi investigation need to be backed by facts to be considered credible.

They stressed that more efforts are needed in order to establish the truth, and added that they reserve judgment until they receive further explanation.

Saudi authorities have said Khashoggi died in an “altercation” with Saudi officials at the Saudi Consulate in Istanbul on Oct. 2. Turkish officials suspect a team of Saudi agents was sent to assassinate him.

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