Thailand’s King Vajiralongkorn has denounced as “inappropriate” his sister’s unprecedented bid to run for prime minister.
Princess Ubolratana Mahidol, 67, has been nominated as a candidate for a party allied to divisive former PM Thaksin Shinawatra.
Such a move would break with the tradition of the Thai royal family publicly staying out of politics.
Thailand’s election is due to take place on 24 March.
In a palace statement read out on all Thai TV networks, the king said: “Involvement of a high-ranking member of the royal family in politics, in whatever way, is an act that conflicts with the country’s traditions, customs, and culture, and therefore is considered extremely inappropriate.”