WASHINGTON -- Battling to relieve stressed credit markets, the Federal Reserve said today that it had provided a total of $435 billion in short-term loans to squeezed banks since December to help them overcome credit problems.

The central bank announced the results of its most recent auction -- another $75 billion in short-term loans -- the 11th such auction since the program started in December.

It's part of an ongoing effort by the Fed to help ease the credit crunch, which erupted in August, intensified in December and January. and took another turn for the worst in March, when Bear Stearns -- the nation's fifth-largest investment house -- edged closer to the brink of bankruptcy.

The housing, credit and financial crises have weakened the economy and threaten to push it into recession.

In the latest auction, commercial banks paid an interest rate of 2.220 percent for the loans.

There were 71 bidders for the slice of the $75 billion in 28-day loans. The Fed received bids for $96.62 billion worth of the loans. The auction was conducted yesterday with the results released today.