The U.S. intends to warn Turkey, the UAE and Oman that they could lose access to G7 markets if they do business with Russian entities subject to U.S. sanctions, Reuters reports.

Brian Nelson, undersecretary for terrorism and financial intelligence, will visit Oman, the United Arab Emirates and Turkey next week and meet with government officials and business and financial institutions to confirm that Washington will continue to actively enforce its sanctions.

As part of the visit, Nelson will discuss Treasury Department efforts to thwart Russia's attempts to evade sanctions and export controls, Iran's "destabilizing" activities in the region, illicit financing risks undermining economic growth, and foreign investment.

The trip marks the latest visit to Turkey by a senior U.S. Treasury Department official to discuss sanctions after a series of warnings last year by officials as Washington increased pressure on Ankara to enforce U.S. restrictions on Russia.

Nelson's visit coincides with a period of strained relations between the United States and Turkey, as the two NATO allies disagree on a range of issues.

Turkey's refusal to give the green light to Sweden's and Finland's NATO applications has Washington worried, while Ankara is frustrated that its request to buy F-16 fighter jets is increasingly tied to the two countries' membership in the alliance.

Nelson will visit Ankara and Istanbul Feb. 2-3. He will warn businesses and banks that they should avoid transactions involving the potential transfer of dual-use technology that could eventually be used by the Russian military, a Treasury Department official said.

Dual-use items can have both commercial and military applications.

While in the United Arab Emirates, Nelson will note the country's poor enforcement of sanctions.

In Oman, Nelson will meet with counterparts to discuss cooperation in combating illicit financing, including terrorist financing.