High-level officials from Japan, the United States and South Korea agreed Saturday to continue consultations on whether to suspend the supply of heavy oil to North Korea.

The talks will be held until Thursday, when an international consortium to build nuclear reactors in North Korea holds its board meeting in New York.

During a regular Trilateral Coordination and Oversight Group meeting in Tokyo, the U.S. side explained that some in the U.S. are calling for a halt to the supply of oil because Pyongyang admitted to covertly continuing a nuclear-weapons development program, in violation of international accords.