BOSTON -- State inspectors say they have found serious safety problems buses used by a popular discount bus service operating between Boston and New York City.

Department of Public Utilities Chairwoman Ann Berwick said inspectors looked at nine buses used by Fung Wah Bus and found serious problems in eight, including cracks to the frames.

That prompted state regulators to ask federal officials to "immediately declare Fung Wah an 'imminent hazard' and order it to cease operations."

The state cited, "Fung Wah's blatant disregard for federal regulations and putting the company's own drivers, passengers and the motoring public at risk."

Berwick said the state negotiated an agreement with the company to take all 21 of their older buses off the road.

Passengers continued to board the Fung Wah buses Monday night, but many were reluctant to do so after 7News told them the state wants the feds to shut Fung Wah down.

“It does worry me. I don’t even think I want to be on it. So right now, I have no choice,” said Kathy Waldron, a reluctant rider.

Fung Wah has had a history of troubles including buses that have broken down and even caught fire on the frequent trips between Boston and New York.

The bus line agreed to send away 21 of its 28 buses for inspections and repair if needed.

Fung Wah is renting buses to keep up its busy schedule.

The Associated Press contributed to this report.