Russia announced the arrest of a minor on Sunday. It said he had threatened to carry out terrorist attacks in Moscow, according to Al Jazeera Arabic. Russia said it received information from US intelligence about the attack before the arrest, according to the same source. There is no independent US confirmation of this account, which comes from a single source. The report did not name the minor or give his age or nationality. It did not explain the nature of the threat or provide details of the US information. The report did not identify the Russian body that announced the arrest or the charges against him.