An agreement allowing the inspection came after Salman called Turkish President Recep Tayyip Erdogan on Sunday. Salman thanked him for welcoming the kingdom’s proposal to set up a “joint working group” to probe Khashoggi’s disappearance, a Saudi statement said.

But hours before the Turkish forensic team arrived, journalists photographed a cleaning crew entering the consulate, hauling buckets, mops and what appeared to be bottles of cleaning solution. When the Turkish investigators entered the consulate, some wearing white protective gear, they “smelled chemicals had been used,” according to two officials in contact with the investigators.

“They are trying to make fun of us and our willingness to cooperate,” one of the officials said.