NEW YORK ( TheStreet) -- Some high-profile mortgage-bond investors reportedly want their money back from Bank of America ( BAC) as pressure intensifies on large mortgage servicers to take back loans that are going bad.

On Monday, a group of institutional investors represented by Gibbs & Bruns LLP said they had sent Bank of America a letter asking that it repurchase $47 billion worth of MBS. On Tuesday afternoon, a Bloomberg report indicated that the Federal Reserve Bank of New York, Pacific Investment Management Co. (Pimco), BlackRock ( BLK), TCW Group and MetLife ( MET) may be among those seeking buyback relief.

>>Bank of America Eyes Mortgage Buybacks

The news came after Bank of America detailed its buyback exposure of nearly $13 billion in a conference call that morning. It also helped send stocks down sharply in afternoon trading, with the Dow Jones Industrial Average plunging more than 200 points and BofA shares down 2.8% at $12.

The Bloomberg report said Pimco, the New York Fed and BlackRock sent a letter to Bank of America this week seeking to "force" the bank to buy back bad loans. The debt in question had been packaged into a $47 billion mortgage-bond securitization by Countrywide Financial before it was acquired by BofA.

During Bank of America's conference call, CFO Chuck Noski referred to a "letter" management had recently received from eight investors.

"In our capacity as the servicer on 115 private label security transactions, we received a letter from eight investors purportedly owning interest in those transactions," said Noski. "The letter asserts breaches of certain servicing obligations including an alleged failure to provide notice of breaches of reps and warranties. While we continue to review and assess the letter and have a number of questions about its content -- including whether these investors actually have standing to bring these claims -- we continue to believe the servicer is in compliance with its servicing obligations."

Noski said the deals had an original balance of $104 billion, which now stands at $46 billion due to prepayments and defaults.

"We will continue to closely monitor the activities of this group and other developments," he added.

The Bloomberg report, which cited anonymous sources, indicated that TCW may join BlackRock in its actions. It also said that MetLife is part of a group represented by the law firm Gibbs & Bruns LLP, which is pursuing action on buybacks from the Countrywide division.

A Bank of America spokesman did not immediately respond to a request for comment; a Pimco spokesman said the firm would not comment on the matter.

-- Written by Lauren Tara LaCapra in New York.

>To contact the writer of this article, click here: Lauren Tara LaCapra.

>To follow the writer on Twitter, go to

>To submit a news tip, send an email to:
Disclosure: TheStreet's editorial policy prohibits staff editors, reporters and analysts from holding positions in any individual stocks.

If you liked this article you might like

Your Complete Guide to Living Like Billionaire Warren Buffett

How to Get Rich Using Warren Buffett's Favorite Stock Market Indicators

How to Make Your Life Successful Just Like Billionaire Warren Buffett

With the Fed, It's Different This Time

How to Live Just Like Billionaire Warren Buffett