PITTSBURGH — Members of the Occupy Pittsburgh group on Wednesday demanded that the state attorney general investigate whether Bank of New York Mellon overcharged public pension funds in Pennsylvania as they protested in front of the bank’s regional office.

Dozens of cars honked in support of the protest, but only a few dozen downtown workers gathered to watch the half-hour event involving 75 protesters.

Anthony Zanaglio, a member of the United Steelworkers Union, said he joined the protest because “people are fed up. The taxpayers bailed out all the banks,” said Zanaglio, 54. He added that state officials should look into the pension allegations.

On Sunday, Occupy Pittsburgh demanded that BNY Mellon pay back money they allege it overcharged public pension funds around the country. BNY Mellon spokesman Ron Gruendl said Wednesday that the allegations of pension wrongdoing “are misguided.”

Earlier this month, the New York state attorney general and New York City filed a lawsuit against BNY Mellon on the same issue, alleging the firm overcharged pensions by almost $2 billion dollars.

“The suits against us are not supported by the facts or the law,” BNY Mellon said.

Nils Frederiksen, a spokesman for Pennsylvania Attorney General Linda Kelly, said protesters who came to the attorney general’s Pittsburgh office were given instructions on how to file an official complaint, but so far they haven’t done so. The Pittsburgh group was formed in response to the Occupy Wall Street protests.