Citigroup says it faces regulatory and criminal sanctions by the South American country, which defaulted on some of its debt in July, if it cannot process the $5 million (3 million pounds) interest payment due to bondholders by Sept. 30.

Economy Minister Axel Kicillof on Monday threatened Citigroup with "penalties" if the bank failed to make the payment, as the government fights to prevent the debt crisis from spreading to other types of bonds.

A lawyer for the bank told U.S. District Judge Thomas Griesa of its plans during a hearing in New York on Friday just hours after a federal appeals court dismissed Citigroup's appeal of Griesa's injunction prohibiting payment.

"As your honour knows, we are facing a payment deadline of Sept. 30, so we are likely also to move for a stay," said Karen Wagner, a lawyer for Citigroup, according to the transcript obtained on Monday.

No other parties were present at Friday's hearing.

Under the terms of a 2012 ruling, Griesa ordered that Argentina must pay in full the U.S. investment firms that rejected bond swaps in 2005 and 2010 at the same time as servicing its performing debt. Investors who exchanged bonds were paid less than 30 cents on the dollar.

In a separate order, Griesa said the injunction also prohibited Citigroup from processing payments on bonds issued under Argentine law.

Argentina defaulted in July after Griesa froze a $539 million coupon payment on foreign law bonds. However, he allowed Citigroup to make a one-off payment on local law bonds and the bank argues the injunction against local law bonds should be lifted.

Kicillof acknowledged Citibank had been shackled by Griesa's ruling, but said Citibank's operations in Argentina were governed by local law.

"If Citibank doesn't distribute the money it will be violating Argentine law," he told local radio station Del Plata. "There are a number of regulations that include different penalties. I don't know which path Citibank will walk down."

Wagner had told the 2nd U.S. Circuit Court last week that Argentina had put "a gun to its head, and the gun will probably go off" if it was unable to process the payments.

Hours after the appeals court tossed out the file on Friday, Griesa told Citigroup it was his view that "the Argentine law bonds issued in Argentina, payable in Argentina, subject to Argentine law, are different from the bonds subject to the (2012) order," the transcript showed.

The judge said he would be able to schedule a prompt hearing.

Danielle Romero-Apsilos, a spokeswoman for Citigroup, confirmed on Monday that the bank "will seek to argue our case on an emergency basis in front of Judge Griesa this week, given the impending Sept. 30 payment date."

(Additional reporting by Eliana Raszewski in Buenos Aires; Writing by Richard Lough; editing by Noeleen Walder and Matthew Lewis)

By Nate Raymond

Stocks treated in this article : Citigroup Inc, The Bank of New York Mellon Corporation