ORLANDO, Fla. -- A 70-year-old woman has been rushed to a hospital after suffering cardiac arrest while swimming in a river attraction at Discovery Cove, Sea World Orlando's sister theme park.

A Sea World spokesman says park lifeguards immediately spotted the woman Thursday and brought her to shore. They began CPR on her but she was unresponsive.

The woman was taken to a nearby hospital.

No further information on the woman was immediately available.