(CNN) -- President Donald Trump is expected to announce Friday that the Treasury Department will impose new sanctions against North Korea.
The sanctions, to be announced at the Conservative Political Action Conference, pertain to vessels and shipping, a person familiar with the matter tells CNN, declining to offer further details.
News of the latest sanctions was first reported by Reuters.
The sanctions will be announced while the President's daughter and senior adviser Ivanka Trump is in South Korea for the closing days of the 2018 Winter Olympics.
During a pre-dinner briefing with President Moon Jae-in, Ivanka said her visit was to "reaffirm our commitment to our maximum pressure campaign to ensure that the Korean Peninsula is denuclearized." She added that discussions with South Korea would touch on "joint values and strategic cooperation as partners and allies."
Moon said North Korea's participation in the Olympics was an "opportunity" for inter-Korean dialogue, which had "led to lowering of tensions on the peninsula and an improvement in inter-Korean relations."
He also thanked "President Trump's strong support for inter-Korean dialogue."