OKLAHOMA CITY (AP) — A grand jury will assist state investigators looking into allegations of sexual misconduct by former University of Oklahoma President David Boren, the Oklahoma attorney general's office confirmed on Wednesday.

The office said former U.S. Attorney Pat Ryan, who prosecuted the Oklahoma City bombing case, was appointed special counsel to its multicounty grand jury unit. Attorney General Mike Hunter stepped back from the investigation so his office could continue to represent the university in other matters, according to his spokesman.

"The attorney general took appropriate ac...