Obama approved the $400 million transfer, which he announced in January

It was the first payment of a $1.7 billion settlement

The funds had been contested since the 1979 Iranian revolution

The Obama administration secretly arranged a plane delivery of $400 million in cash on the same day Iran released four American prisoners and formally implemented the nuclear deal, US officials confirmed Wednesday.

President Barack Obama approved the $400 million transfer, which he had announced in January as part of the Iran nuclear deal. The money was flown into Iran on wooden pallets stacked with Swiss francs, euros and other currencies as the first installment of a $1.7 billion settlement resolving claims at an international tribunal at The Hague over a failed arms deal under the time of the Shah.

A fifth American man was released by Iran separately.

Details of the cash delivery drew fresh condemnation of the Iran deal from Republicans. They charged that the administration had empowered a major sponsor of terrorism because the nuclear agreement enables Tehran to re-enter the international economy and gives it access long-frozen funds.

In addition, they said the cash delivery amounted to a ransom payment that violates long-standing US practice not to pay for hostages. As such, they argued, it encourages Iran to hold onto its remaining Americans prisoners until they can get more money for them.

“Paying ransom to kidnappers puts Americans even more at risk,” said Illinois Republican Sen. Mark Kirk. “While Americans were relieved by Iran’s overdue release of illegally imprisoned American hostages, the White House’s policy of appeasement has led Iran to illegally seize more American hostages, including Siamak Namazi, his father Baquer Namazi and Reza Shahini.”

Republican presidential nominee Donald Trump jumped on the issue, seeking to change the subject after a punishing week of gaffes and reproaches from members of the GOP.

Source: Drudge Report