The US has told the United Arab Emirates and Turkey that its economic and financial ties with Russia are hampering efforts to contain Russia's invasion of Ukraine..

Brian Nelson, U.S. Under Secretary of the Treasury for Terrorism and Financial Intelligence, met with Turkish officials Thursday and Friday to discuss U.S. concerns about a surge in exports that include U.S. goods, according to people familiar with the matter, Bloomberg writes..

In UAE, Nelson discusses steps to curb sanctions evasion. The U.S. told officials that deepening UAE financial ties with Moscow hindered their efforts to isolate Russia.

On Thursday, the US released a statement saying UAE talks are focused on "

US officials urge Turkey to limit the flow of goods to Russia. They warned their colleagues that tens of millions of dollars worth of export-controlled goods were entering Russia and could be used by the defense industry to prolong the conflict..

Between March and October last year, dozens of Turkish exporters sent about $800 million worth of goods to Russia, including $300 million worth of cars and $80 million of electronics, they said.. These questions were discussed on condition of anonymity..

The UAE and Turkey have become havens for Russian wealth over the past year, complicating US efforts to build a united front against President Vladimir Putin.. The UAE maintains ties with both Ukraine and Russia.

Drones and oil.

U.S. officials have expressed concern over the role UAE businesses have played in handing over Iranian drones to Moscow and allowing Tehran to bypass sanctions on oil exports, sources say..

The UAE said during the visit that " The officials also discussed expanding cooperation in the fight against money laundering and terrorist financing..

In Turkey, other areas are of concern, including Russian ships that are either sanctioned or subject to export controls when calling at Turkish ports.

Some of Washington's warnings spurred action. All five Turkish banks that participated in the Russian Mir payment system withdrew after a U.S. warning last year.. Turkish airlines are working to stop serving Russian companies after similar warnings.