Two Holly Springs children and their mother were taken to the hospital early Wednesday morning to be treated for carbon monoxide poisoning. Authorities said the family was asleep in the house on Sarrucca Court when they felt nauseated. Someone called the fire department around 4:15 a.m. Fire officials said the family was alerted to a problem by their pet cats that were jumping on and off the bed. The fire chief said the family parked a car in the garage around 9 p.m. last night but left it running, which caused the home to fill with the gas.