North Korea is using increasingly sophisticated technology to evade sanctions while continuing to raise money by selling arms to Syria, according to a confidential United Nations report obtained by CBS News.

The 67-page draft document was assembled by experts for the U.N. Security Council’s sanctions committee and circulated to members at the end of January. It’s expected to be finalized and possibly made public in early March after President Trump returns from his summit with North Korean leader Kim Jong Un in Vietnam, according to a diplomatic source. The source said the findings in the draft are not expected to change but recommendations and annexes will be added in the final version.