Sen. Elizabeth Warren Elizabeth WarrenGOP set to release controversial Biden report Biden's fiscal program: What is the likely market impact? Warren, Schumer introduce plan for next president to cancel ,000 in student debt MORE (D-Mass.) is seeking assurances from the Trump administration that humanitarian aid to Iran is not being hindered by U.S. sanctions amid the global spread of the coronavirus.

“I understand that humanitarian items are exempt from United States sanctions, that the Iranian government has the primary responsibility for the health of its citizens, and that a deficient response to the coronavirus outbreak by the Iranian government should not be blamed on the United States or any other foreign power,” Warren wrote in a letter to Treasury Secretary Steven Mnuchin Steven Terner MnuchinLawmakers fear voter backlash over failure to reach COVID-19 relief deal United Airlines, unions call for six-month extension of government aid House Democrats plan to unveil bill next week to avert shutdown MORE and Secretary of State Mike Pompeo Michael (Mike) Richard PompeoUS reimposes UN sanctions on Iran amid increasing tensions Sunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Trump steps up Iran fight in final election stretch MORE.

“At the same time, I am concerned about the vulnerability of the Iranian people to the coronavirus and the potential for Iran's coronavirus cases to worsen the spread of the disease to neighboring countries, including regional allies, and to the rest of the world,” she added.

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Iran has the most coronavirus deaths after China.

The Treasury Department on Thursday issued a license to allow humanitarian aid to go to Iran through a Swiss channel.

Warren argued that while the Treasury Department has taken some steps toward allowing humanitarian trade, banks and businesses are still reluctant to finance those transactions.

During congressional testimony Friday, Pompeo said the U.S. “fully supports” sending humanitarian aid to Iran.

“We have made offers to the Islamic Republic of Iran to help, and we’ve made it clear to others around the world and in the region that assistance, humanitarian assistance to push back against the coronavirus in Iran is something the United States of America fully supports,” Pompeo told members of the House Foreign Affairs Committee.

When asked if the administration would waive sanctions to help fight coronavirus in Iran, Pompeo denied reports that the sanctions have made it difficult for Iranians to access medical supplies.

“There has been continuously an avenue for the movement of medical and humanitarian goods inside the Islamic Republic of Iran,” he said. “They have not been sanctioned at any time, before the advent of coronavirus or concurrently.”