Found an article on this:

LocalBitcoins exchange announces the termination of serving Russian users https://getblock.net/en/news/localbitcoins-exchange-announces-the-termination-of-serving-russian-users/

For more details on the EU sanctions, see also another post, found here on SN, which shared the Press Release from the EU:

EU bans providing crypto wallets, accts, & custody svcs to Russian govt & people #78044 https://ec.europa.eu/commission/presscorner/detail/en/ip_22_5989

also see another post, found here on SN, with an article from Bitcoin Magazine:

EU Issues Bitcoin, Crypto Ban On Russia With New Sanctions #78099 https://bitcoinmagazine.com/legal/eu-issues-bitcoin-crypto-ban-on-russia

and there is another post as well, found here on SN, with an article on this from Coindesk:

EU’s Russian Crypto Ban Confirmed as Bloc Tightens Sanctions #78052 https://www.coindesk.com/policy/2022/10/06/eus-russian-crypto-ban-confirmed-as-bloc-tightens-sanctions