Jerry Sandusky, the former Penn State assistant football coach charged last month with 40 counts of sexually abusing eight boys, was arrested Wednesday on new sexual abuse charges involving two additional accusers. The two testified before a grand jury that they were molested or raped by Sandusky over a period of years, the authorities said.

Wearing a Penn State windbreaker, Sandusky, 67, was taken to the Centre County Correctional Facility in Bellefonte, Pa., after his arraignment, because he was unable to pay the $250,000 cash bail. If Sandusky can post bail, he will have to wear an electronic ankle monitor and be subject to house arrest. He is not allowed to make contact with the accusers or witnesses and cannot have unsupervised contact with minors.

The new charges widen the Pennsylvania attorney general’s case against Sandusky, who now faces more than 50 counts of child sexual abuse, in advance of next Tuesday’s preliminary hearing in Bellefonte. Among the new counts, Sandusky was charged with four counts of involuntary deviate sexual intercourse and two counts of unlawful contact with a minor, all first-degree felonies punishable by up to 20 years in prison and $25,000 in fines.

Sandusky’s lawyer, Joseph Amendola, did not return a message left on his cellphone.

Both of the new accusers told a grand jury that they, like the eight other accusers in the case, met Sandusky through the Second Mile charity he founded in 1977. The organization, which has been making preparations to fold, announced Wednesday that it would reduce its staff after losing “significant financial support.”