Rishi Sunak has been appointed as the UK's prime minister by Britain's King Charles after the monard accepted the resignation of Liz Truss after just 49 days in office.
The new Conservative leader was invited to form a government by the king when they met at Buckingham Palace on Tuesday after Ms Truss departed as the shortest-serving prime minister in history.
Mr Sunak (42) is the UK’s first Hindu PM, the first of Asian heritage and the youngest for more than 200 years.
The former chancellor was expected to make an address from Downing Street shortly after leaving the palace.
Taoiseach Micheál Martin was among those who congratulated Mr Sunak on his appointment, adding that he looks forward to early engagement with the new prime minister "on the important issues we face on these islands and globally".