(WPXI) – An active search is underway for a 64-year-old woman who may have fallen into a sinkhole while looking for her missing cat in Unity Township in Westmoreland County. Emergency crews are searching along Marguerite Road near Monday’s Union Restaurant. Troopers say they received a call around 1 a.m. regarding a family concerned about their grandmother Elizabeth Pollard’s whereabouts. At around 2:50 a.m., troopers found her vehicle parked behind Monday’s Union Restaurant, where they found Pollard’s 5-year-old granddaughter inside. She was unharmed. Near Pollard’s vehicle, troopers noticed a sinkhole. State police said they are performing search and rescue efforts with the assumption she fell down the hole. State police said she could have gone missing as early as five o’clock Monday afternoon when people at Monday’s restaurant saw her looking for her cat, Pepper. Authorities say that area is potentially an old coal mine and crews are bringing in tools to remove water, dirt and debris from the hole so they can better investigate. At this point, there has been no communication with Pollard.