The team looking for a missing Pennsylvania grandmother believed to have fallen into a sinkhole has determined that an abandoned coal mine is too unstable for people to safely search underground, authorities said Wednesday while still expressing hope Elizabeth Pollard will be found alive. Emergency crews and others have been trying to locate Pollard, 64, for two days. Her relatives reported her missing early Tuesday and her vehicle with her unharmed 5-year-old granddaughter inside was found about two hours later, near what is thought to be a freshly opened sinkhole above the long closed, crumbling mine. Read more at: https://www.9news.com/article/news/nation-world/woman-falls-sinkhole-pennsylvania-search/507-515098ff-3e4c-4678-8112-6eb5501963b1 More local videos here: https://youtube.com/@9news Subscribe to NEXT: https://youtube.com/@Nexton9NEWS Stay connected: 9NEWS Website: https://www.9news.com/ Facebook: https://www.facebook.com/ilike9news Twitter: https://twitter.com/9NEWS Instagram: https://www.instagram.com/9newsdenver/ Download the 9NEWS App: https://www.9news.com/appredirect/ Sign up for the 9NEWSLETTER: https://www.9news.com/email 9NEWS (KUSA) is located in Denver, Colorado.