United States President Donald Trump has landed in South Korea, with the north’s nuclear ambitions high on his agenda.

He flew in from Tokyo where yesterday he said Japan could shoot down Pyongyang’s missiles with US equipment.

Trade will also be a key focus for Mr Trump, who wants fresh terms for the US-South Korea free trade agreement.

He is meeting President Moon Jae-in, US troops and local politicians.

Mr Trump is currently on a five-nation tour of Asia, his first as president.

He has also previously criticised the free trade agreement between the US and South Korea, and has made it clear he wants to re-negotiate its terms.