U.S. House of Representatives Speaker Nancy Pelosi on Sunday said the chamber is "exploring" legislation to ban imports of Russian oil and that Congress intends to enact $10 billion in aid for Ukraine this week, Reuters reported.

"The House is currently exploring strong legislation that will further isolate Russia from the global economy," Pelosi said in a letter.

"Our bill would ban the import of Russian oil and energy products into the United States, repeal normal trade relations with Russia and Belarus, and take the first step to deny Russia access to the World Trade Organization," she added.