WASHINGTON (AP) — The Federal Reserve announced yesterday that it will provide up to $540 billion in financing to bolster the money market mutual fund industry, its latest effort to get credit flowing more freely again.

The Fed's new programme, called the Money Market Investor Funding Facility, will be used to support a private-sector initiative designed to provide liquidity, or cash, to money market investors. The Fed plans to back purchases of short-term debt including certificates of deposit and commercial paper that expire in three months or less from money market mutual funds.

The funds are large buyers of commercial paper and CDs, which historically are considered safe investments. However, the credit crisis, which took a turn for the worse last month, has put money market mutual funds under pressure as skittish investors demand withdrawals.

"The short-term debt markets have been under considerable strain in recent weeks as money market mutual funds and other investors have had difficulty selling assets to satisfy redemption requests," the Fed explained.

The Fed is tapping its Depression-era emergency powers to create the new programme. It will provide financing to a series of five private-sector facilities — each run by JPMorgan Chase. They will buy commercial paper — issued by highly rated financial institutions — and CDs, bank notes and other eligible short-term debt from the funds. Commercial paper is a short-term financing mechanism used by companies for day-to-day operations.

By doing so, the Fed hopes to take pressure off the funds and to improve credit conditions so banks and other financial institutions will be more inclined to lend to each other, and to consumers and businesses.

"Improved money market conditions will enhance the ability of banks and other financial intermediaries to accommodate the credit needs of businesses and households," the Fed said.

The Fed is prepared to provide financing up to $540 billion under the new programme, Federal Reserve officials said. Only time will tell how much demand there is. The Fed hopes the new programme will give the funds confidence to return to buying commercial paper, CDs and other things.

Money-market mutual funds invest in short-term corporate and government debt that typically carries low risks. The funds are popular places to park cash temporarily but still keep it accessible when needed. They typically earn higher interest than money-market accounts and savings deposits at banks, which are insured by the Federal Deposit Insurance Corp.

Of the total $3.45 trillion held in money-market funds as of Friday, about $858 billion was in so-called "prime" money-market funds — the type that typically invest in commercial paper — according to fund-tracking firm iMoneyNet.

Although a total of nearly $6 billion flowed out of prime funds on Thursday and Friday of last week, the decline was far milder than it had been last month. For example, during the four-week period ended October 3, assets in prime funds dropped by more than $514 billion, or about 25 percent, as investors switched to funds offering more security, such as those investing in government debt.