Hungary’s ban on school talks about sexuality or transgender issues is “an affront to human rights”, Britain’s first Special Envoy on LGBT Rights said on Thursday, saying he would join the European Union (EU) in fighting the new law.

The EU has criticised the law, passed on Tuesday, outlawing the dissemination in schools of content deemed to “promote homosexuality and gender change”, with Equality Commissioner Helena Dalli raising the possibility of sanctions.”This kind of law is obviously completely unacceptable,” Nick Herbert, who was the first Conservative Party lawmaker to be openly gay when elected in 2005, told the Thomson Reuters Foundation in a video call.

“It’s an affront to human rights (and) it’s very concerning that European countries should be going backwards like this,” said Herbert, who stood down from parliament in 2019.

European Commission President Ursula von der Leyen said on Wednesday that she was “very concerned” about the new law and was assessing whether it breached “relevant EU legislation”.

Herbert, 58, said he could not speak for ministers as to whether Britain was considering sanctions, but said he intended to “look at any proposal” by the government in response to Hungary’s move.

Hungary’s nationalist Prime Minister Viktor Orban has grown increasingly radical on social policy ahead of an election next year, railing against LGBT+ people and immigrants.

Herbert said British Prime Minister Boris Johnson discussed LGBT+ rights with Orban when they met in London last month.

“It’s already been raised at a high level and we will continue to press this issue working with our allies,” said Herbert, who previously served as a minister at the Home Office and Ministry of Justice.

Herbert was appointed as Special Envoy on LGBT Rights last month and will next year lead Britain’s first global LGBT+ conference, aimed at promoting legal reform and tackling violence and discrimination.