An ammonia leak at a northeast Texas meat packing plant has sickened dozens of people. A spokeswoman at Titus Regional Medical Center in Mount Pleasant says 17 patients were transported to the hospital for examination. Spokeswoman Shannon Norfleet says the examinations were precautionary and no serious injuries or illnesses were found. She said the hospital had initially been told to expect as many as 40 people potentially exposed. The leak was reported about 2:30 p.m. Friday at the Pilgrim's Pride poultry plant in Mount Pleasant, about 110 miles northeast of Dallas. Pilgrim's Pride spokeswoman Margaret McDonald said she was gathering details on how the leak occurred.