Former Republican presidential candidate Rick Santorum is reportedly being treated at a local hospital after becoming ill during a weekend visit to Charleston.

Santorum, a former U.S. senator from Pennsylvania and chairman of the advocacy group Patriot Voices, was said to have been in town to visit his son, who attends The Citadel.

“While traveling in South Carolina on Saturday, Rick Santorum became ill and was admitted to the hospital for a gastro-intestinal illness and dehydration,” according to a statement posted on the Patriot Voices website. “He is feeling better today but remains in the hospital and is unable to travel to Iowa on Monday, April 15 for previously scheduled events.”

He is expected to resume a full schedule later this week and looks forward to returning to Iowa soon, Virginia Davis, spokeswoman for Patriot Voices, said in the statement.

It remained unclear Monday just where Santorum was receiving treatment. Medical University Hospital and Roper St. Francis Healthcare said they had no information to provide.

An email sent to Patriot Voices seeking additional information received no response Monday.

Santorum’s son is a freshman at The Citadel, and Saturday was the school’s Recognition Day. That is when knobs escape the Fourth Class system and are welcomed into the Corps of Cadets.

Citadel spokeswoman Charlene Gunnells said she did not see Santorum at the event and could not confirm he attended Recognition Day.

Reach Glenn Smith at 937-5556 or Twitter.com/glennsmith5.