SKIPPACK, Pa. (AP) — The parents of a University of Rhode Island student who disappeared while driving home to Pennsylvania last week pleaded for information that will lead to his return.

Matthew Royer, 21, of Collegeville, left his apartment Thursday night but never made it home. He was last seen outside Allentown just after 2 a.m. Friday when a surveillance camera recorded him at a Sunoco gas station in Fogelsville, about 35 miles from his parents' home.

State police said Monday they haven't ruled out that Royer decided not to come home, but investigators were pursuing all leads.

"While it may be voluntary, we are still out there in force doing everything we possibly can," Trooper Morgan Crummy said.

Royer's parents appeared with Crummy at a news conference Monday afternoon and asked their son to call home.

"We are here for you. We love you. We miss you," said his mother, Janet Royer.

Authorities said he was driving a silver 2008 Chevrolet Cobalt with Pennsylvania registration.

Police said a witness reported having seen the car at 1 p.m. Friday in Myerstown, near Lebanon, but it wasn't clear if Royer was in it.

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