The Catholic priest from the Archdiocese of Boston who was accused of stalking late-night talk show host Conan O'Brien was hospitalized after missing for a brief time, the Associated Press reports.

Father David Ajemian's father reported him missing at 3:15 in the afternoon after the priest had been missing for three hours.  Police were told "his mental health may be a concern."

After returning to his parents' home at 7 p.m., Father Ajemian voluntarily went to a hospital.

Father Ajemian, 46, was arrested in New York City while trying to enter a taping of "Late Night with Conan O'Brien" despite warnings from security personnel to stay away. 

Father Ajemian allegedly started writing harassing letters to the comedian-actor in September, 2006.

He has been charged with aggravating stalking and harassment.  A judge recently found him fit to stand trial despite a psychological condition. 

The priest has been placed on leave by the Archdiocese of Boston.  He attended Harvard at the same time as O'Brien, but it is unknown whether they knew each other there.