SEOUL The United States and South Korea launched a new task force  this week, aimed at preventing North Korea from procuring illicit oil, as deadlock at the United Nations Security Council (UNSC) casts doubts over the future of international sanctions.

The first meeting of the Enhanced Disruption Task Force (EDTF) was held in Washington on Tuesday.

The meeting involved more than 30 officials from ministries and agencies in charge of diplomacy, intelligence, sanctions and maritime interdiction, South Korea's foreign ministry said in a statement.

The two sides expressed concern over the possibility of Russia providing refined oil to North Korea, and discussed ways to suspend illegal cooperation between Moscow and Pyongyang, the statement added.

"Oil is an essential resource for North Korea's nuclear and missile development, and military posture," the statement said.

Under UNSC restrictions imposed over North Korea's nuclear weapons and missile programmes, Pyongyang is limited to importing four million barrels of crude and 500,000 barrels of refined products a year.

There is a strong possibility that Russia will veto a UN resolution calling for continuation of the mandate for the expert panel that monitors sanctions on North Korea, a UN diplomat told Reuters last week.

A UN expert panel that monitors implementation of sanctions said this month that North Korean-flagged tankers may have delivered more than 1.5 million barrels of refined oil products between Jan 1 and Sept 15 last year.

The United States and South Korea say North Korea has supplied Russia with weapons for use in Ukraine. Russia and North Korea have denied this, even as they pledged to strengthen military cooperation.

Commercial satellite imagery show North Korean oil tankers, including some sanctioned vessels, have visited Russian ports in recent weeks.

The US-South Korea task force is considering potential actions to disrupt North Korea's refined oil procurement networks, including exposing sanctions-evasion activities, levying unilateral sanctions designations, and engaging private sector and third-party actors throughout the region, who either knowingly or unwittingly facilitate oil shipments, the US State Department said.

In future, the task force could target other areas of sanctions evasion, including coal sales, the department said in a statement.

  - Reuters