SEOUL, Nov 6 (Reuters) -

The South Korean-owned Philly Shipyard in the United States

does not currently have the capability to build a

nuclear-powered submarine

, Prime Minister Kim Min-seok said on Thursday during a

parliamentary hearing.

His remarks come after U.S. President Donald Trump wrote

on social media last week that

he had given approval

for South Korea to build a nuclear-powered submarine and

that it would be built in the Philadelphia shipyard.

Trump posted the comment on his Truth Social platform

after South Korea's President Lee Jae Myung asked him during a

summit to let his country, an ally of the U.S., have fuel for

nuclear-powered submarines equipped with conventional weapons.

"At the moment, as far as I know, it (the Philly

Shipyard) does not have the capability," Kim said when asked by

a lawmaker about the potential to build a nuclear submarine

there.

South Korea's Defence Minister Ahn Gyu-back told a

parliamentary hearing on Wednesday that it was "rational" to

build the submarines in South Korea, given the country's level

of expertise on shipbuilding, but that the issue had not been

discussed by the two countries.

South Korea is home to some of the world's leading

shipbuilders, including Hanwha Ocean, which along

with another affiliate owns the Philly shipyard.

Hanwha Ocean declined to comment on the issue.

U.S. Defence Secretary Pete Hegseth said at a joint press

conference with Ahn on Tuesday that the Trump administration

would work closely with the Department of State and Department

of Energy to fulfill Trump's commitment on the submarines,

adding that the president wants allies to be strong.