This is what J.K. Rowling wrote on her Twitter:
Let us recall that Ukraine’s President Petro Poroshenko, prime-minister of Ukraine Volodymyr Groysman, former prime-minister of Ukraine Arseniy Yatsenyuk, Head of Ministry of Internal Affairs Pavlo Klimkon, also the Head of Mejlis Refat Chubarov, Ukraine’s Parliament Spokesman Andriy Parubiy congratulated Jamala.