SEOUL, South Korea (AP) — North Korea has test-fired a “new-type tactical guided weapon,” its state media announced Thursday, a move that could be an attempt to register the country’s displeasure with currently deadlocked nuclear talks with the United States without causing those coveted negotiations to collapse.

The country’s leader, Kim Jong Un, observed the firing by the Academy of Defense Science of the unspecified weapon on Wednesday, the North’s state-run Korean Central News Agency said. Kim was reported to have said that “the development of the weapon system serves as an event of very weighty significance in increasing the combat power of the People’s Army.”