The team of US President-elect Donald Trump has proposed to freeze the Ukrainian conflict and provide new arms supplies in exchange for Kiev's refusal to join NATO for at least 20 years, the Wall Street Journal newspaper reported on Thursday, citing sources.

The newspaper reported that this idea also includes creating an 800-mile demilitarized zone but it remains unclear who would police the territory. The "peacekeeping force" would not involve US troops, nor come from a US-funded international body, such as the United Nations, the report added. A Trump adviser also said, as quoted by the Wall Street Journal, that Europeans should maintain peace in Ukraine. However, the US leader has not approved any of these plans yet.

The presidential election took place in the United States on Tuesday. Vice President Kamala Harris represented the Democratic Party, while Trump ran for the Republican Party.