Safety concerns have led federal authorities to shut down a bus company that took passengers from several cities to New York City.
Authorities have ordered Double Happyness Travel Inc. to immediately cease operations due to concerns about vehicle and driver safety.
U.S. Transportation officials say they found numerous violations of rules on vehicle maintenance and driver safety, including drug and alcohol testing and records on how long drivers were working.
Double Happyness takes passengers from Albany, N.Y., Baltimore, Md., and Wilmington, Del., to stops in midtown Manhattan and Chinatown.
The company did not immediately return a message Thursday at its corporate office in Huntingdon Valley, near Philadelphia.
The Federal Motor Carrier Safety Administration says it has doubled inspections and safety reviews of the nation's 4,000 bus lines in recent years.