North Korea, which has been hit by a series of UN sanctions, is illegally importing more and more oil and continues to bring in luxury cars and alcohol, according to an annual report delivered Monday to the UN Security Council.

“The DPRK violates the resolutions through illicit import of petroleum,” the report said, which was conducted by experts responsible for monitoring the application of sanctions.

North Korea has “increased procurement including through a notable increase in the number of these larger foreign-flagged tankers directly delivering to the DPRK on multiple occasions,” the experts said, without identifying their origin.

In 2017, several sets of international sanctions were imposed on Pyongyang, limiting its oil imports and banning its exports of coal, fish and textiles, in order to push the country to stop its nuclear and ballistic weapons programs.

To date, the measures have been unsuccessful.

It has nonetheless continued to develop its arsenal, analysts say, despite two high-profile summits between leader Kim Jong Un and US President Donald Trump.

Negotiations between the Pyongyang and Washington have deadlocked over issues of sanctions relief and what the North would be willing to give up in return.

The UN Panel of Experts said they received, as in the previous year, a report from the United States with satellite images and data covering the period from January 1, 2019 to October 31.