I went looking for a source and found the official sanction, seems it's from May 2025. This post is inaccurate at best, Russian anti-EU propaganda at worst.

Dogru is listed as being a Turkish national with a Turkish address, so not a EU citizen according to the sanction at least.

The official reasoning is pasted here. It's mainly about him being part of the Russian propaganda machine, which is worth a sanction in my eyes, but the Gaza stuff is definitely worrying to bring up on a Russian sanctions list.

Hüseyin Doğru is the founder and representative of AFA Medya A.Ş. which is a media company based in Istanbul. AFA Medya A.Ş. operates “RED”, which comprises a number of media platforms, and which has close financial and organisational connections with Russian state propaganda entities and actors, and shares deep structural ties, including interlinkages between, and rotation of, individual personnel with Russian state media organisations.RED has used its media platforms – often publishing under “redstreamnet” or “thered.stream” – to systematically spread false information on politically controversial subjects with the intent of creating ethnic, political and religious discord amongst its predominantly German target audience, including by disseminating the narratives of radical Islamic terrorist groups such as Hamas.During a violent occupation of a German university by anti-Israel rioters, RED personnel coordinated with the occupiers to disseminate images of their vandalism – which included the use of Hamas symbols – through their online channels, thus providing them with an exclusive media platform, facilitating the violent nature of the protest.Through AFA Medya, Hüseyin Doğru thus supports actions by the Government of the Russian Federation which undermine or threaten stability and security in the Union and in one or several of its Member States, including by indirectly supporting and facilitating violent demonstrations and engaging in coordinated information manipulation.