This is stated in a statement by the British Foreign Office.

Sanctions were imposed against the speaker of the Chechen parliament, Magomed Daudov, the former head of the police of the city of Argun, Ayub Kataev, and the deputy head of the Chechen Interior Ministry, Apti Alaudinov.

As reported by TASS, the restrictions include a ban on entry into Britain and the freezing of bank accounts. 

Earlier it was reported that the US Treasury imposed sanctions against FC Akhmat and the Kadyrov Foundation.