Two Masury residents are among five men who have been indicted by a federal grand jury in Pittsburgh of defrauding Primary Health Network of Sharon of more than $2 million.

John and Christopher O’Brien, both of Masury, have been charged with conspiracy to commit mail or wire fraud and wire fraud. They each pleaded not guilty at arraignment May 11, and have been released on bond. Each charge carries a possible punishment of up to 20 years in prison.

Also charged were Jack Laeng and Drew Pierce of West Middlesex, and Mark Marriott of Sharpsville, all of whom were officials for Primary Health.

John O’Brien was charged for his role controlling Tele-Data, a telecommunications company, and Chris O’Brien for owning and controlling Excel Construction Services, said the indictment, which was handed down May 9.

The O’Briens were part of a scheme to invoice Primary Health and another company for work that was not performed during the construction of a health center in Lewiston, Pa., the indictment said. The indictment covers the period of 2011-19.

The indictment also lists co-conspirators and individuals who are not named nor indicted.

The U.S. Attorney’s Office said it is seeking restitution.