WASHINGTON- President Joe Biden is set to sign an executive order imposing new measures aimed at punishing Belarus' President Alexander Lukashenko, according to a White House official familiar with the effort.

As part of the effort, the U.S. Treasury Department will also issue its largest round of sanctions to date on Belarusian individuals and entities, including the Belarusian National Olympic Committee, the official said.

(Reporting by Trevor Hunnicutt and Daphne Psaledakis; Editing by Chizu Nomiyama) ((trevor.hunnicutt@tr.com; +1 646 223 7914; twitter.com/trhunnicutt; Reuters Messaging: trevor.hunnicutt.thomsonreuters.com@reuters.net))