Members of the United Nations Security Council vote to impose new sanctions on North Korea on December 22, 2017.

Two Singapore companies and others in Asia have been supplying luxury goods to North Korea hence violating sanctions, according to a leaked United Nations draft report, the BBC reported on Tuesday.

Both the UN as well as Singapore prohibit the sale of luxury goods to the communist state, and Singapore's government said it has started investigations into this case.

The two companies — OCN and T Specialist — share the same director, and have said they have done nothing wrong, according to BBC.