CHARLOTTESVILLE, Va. (AP) _ Christopher Reeve was thrown from his steed during a horse-jumping competition and was in stable condition on Sunday.

The actor who starred in the ``Superman'' movies was admitted to the University of Virginia Medical Center in Charlottesville after the accident on Saturday, said his publicist, Lisa Kasteler.

Reeve, 42, was approaching the third jump of a 15-jump course when ``something spooked the horse,'' said Monk Reynolds, owner of Commonwealth Park in Culpeper, about 45 miles northeast of Charlottesville.

``His horse just stopped dead and threw him,'' said Reynolds.

He said Reeve appeared to suffer a neck injury and was carried off the field in a stretcher.

The actor's family asked hospital officials not to comment. Kasteler would say only that he was in stable condition.

Reeve, who owns several horses, was competing with about 300 others in the dressage and horse-jumping event when the accident happened.

The actor has recently appeared in John Carpenter's remake of ``Village of the Damned'' and the HBO movie ``Above Suspicion.'' His other film credits include ``Death Trap,'' ``The Remains of the Day,'' ``The Bostonians,'' ``Gray Lady Down,'' ``Somewhere in Time,'' ``The Aviator,'' and ``Morning Glory.''