Secretary of State John Kerry says he raised the controversial email hack of the Democratic National Committee with Russia’s top diplomat, but then ceased making any allegations about who might be responsible. Kerry told reporters Tuesday he brought the matter up with Russian Foreign Minister Sergey Lavrov at a meeting in Laos, revealing the FBI was investigating.

He did not, however, repeat allegations or echo suspicions that Russia was responsible for the hack and said he would not draw conclusions until the probe is complete. “I raised the question and we will continue to work to see precisely what those facts are,” Kerry said. He did confirm if Lavrov responded to the matter.

Earlier, there was an awkward moment during the formal greeting in front of cameras when a reporter shouted a question to Lavrov asking what he thought about the allegation that Russia was responsible for the hack.

“I don’t want to use four-letter words,” Lavrov replied.