Secretary of State John Kerry says he raised the email hack of the Democratic National Committee with Russia's top diplomat but stopped short of making any allegation 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 and explained that 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 would not say if Lavrov responded.

Asked about the allegations earlier, Lavrov scoffed, saying: "I don't want to use 4-letter words."