U.S. reaches "quiet understanding" with Qatar not to release $6 billion in Iranian oil revenues

The U.S. has reached a "quiet understanding" with Qatar not to release any of the $6 billion in Iranian oil revenues that was unfrozen as part of the prisoner swap last month, a source with knowledge of the arrangement told CBS News.

Deputy Treasury Secretary Wally Adeyemo informed House Democrats of that understanding in a closed-door meeting Thursday morning.

As part of the high-stakes deal to release five Americans who had been wrongfully detained in Iran, the Biden administration included the transfer of the Iranian oil assets from a restricted account in South Korea to Qatar.

Many Republicans have criticized the Biden administration for releasing the funds, claiming it freed up resources for Iran to support the attack. Administration officials have said since the attacks began that Iran has long supported Hamas with material, financial and logistical support, but to date, no evidence has been found to link the surprise attacks to Tehran.