Dmytro Chubenko, spokesperson for the Kharkiv prosecutor's office, said the missile, one of several that hit the city on Jan. 2, was visually and technically different from Russian models.

Showing fragments from a missile in Kharkiv, he said the missile was slightly bigger in diameter than the Russian Iskander missile, while its nozzle, internal electrical windings, and rear parts were also different.

Russia attacked Kharkiv with several missiles this week, killing two people and injuring over 60 in one of its biggest missile and drone strikes since the start of the large-scale war in February 2022.

North Korea has been under a United Nations arms embargo since it first tested a nuclear bomb in 2006.

U.N. Security Council resolutions - approved with Russian support - ban countries from trading weapons or other military equipment with North Korea.