Prominent British-Palestinian surgeon Ghassan Abu Sittah said authorities in Germany have detained him and are refusing him entry into the country.

Abu Sittah was due to speak at a Palestinian conference in Berlin on Friday. The surgeon said he had been invited to the conference to speak “about my work in Gaza hospitals”. “The German government has forcibly prevented me from entering the country,” he posted on X.

Since leaving Gaza in late November, the doctor has been raising awareness about the impact of Israel’s war, which has killed more than 33,000 Palestinians.

In the initial weeks after Israel began its assault, Abu Sittah was the unofficial English-language representative of Palestinian doctors and surgeons treating Palestinians wounded by Israeli attacks.

He accused the Israeli military of using white phosphorus, which is illegal in built-up and populated areas like Gaza, and deliberately targeting children. In an interview with MEE after he left Gaza, Abu Sittah said medics were using household items to treat patients because of an Israeli-imposed blockade on medical equipment entering the enclave.

Berlin has been a key supplier of armaments to Israel in its war on Gaza and has also been one of its main advocates.

Germany is currently subject to an International Court of Justic (ICJ) case filed by Nicaragua, which accuses it of “facilitating” Israeli genocide in Gaza. The ICJ is also considering a case filed by South Africa accusing Israel of genocide.