A Google software engineer died during a fatal accident at Yosemite National Park, where a large tree branch reportedly fell on her earlier this month. Angela Lin, 29, was hiking past the park's giant sequoias with her boyfriend and two friends on July 19 when the group noticed a cracking sound above them, according toSF Gate. "Two to three seconds later, branches fell out of the sky," Hua told the outlet. "One big branch struck Angela, and then there were a bunch of smaller ones directly behind me." Lin was found on the ground and unresponsive. Hua immediately called 911 and then performed CPR. A park ranger arrived soon after and took over the resuscitation efforts before emergency personnel pronounced her dead. "It was just unimaginable that something like this could occur," Hua told the outlet. "On such a popular trail, too." The accident occurred at the Tuolumne Grove paved trail, which was closed to the public for a week, SF Gate reported. The incident is reportedly under investigation. Hua told SF Gate that Lin's loved ones are frustrated by a lack of communication with officials "We are seeking more information from the park service regarding this incident, especially around trail safety, maintenance and awareness of problematic trees on popular trails, and future prevention of similar incidents," he wrote in an email to the outlet. USA TODAY has reached out to the National Park Service and the Tuolumne County Sheriff's Office for comment. Lin worked as a full-time software engineer at Google for three years, starting in April 2022, according to herLinkedIn page. "We lost a loved and respected member of our team. We're very saddened by this tragedy, and our hearts are with their family and loved ones," Google said in a statement to USA TODAY. She previously worked at the AI Customer Relationship Management firm Salesforce for two years and interned at Microsoft, as her LinkedIn page reveals. She earned her bachelor's degree in electrical engineering and computer sciences at the University of California, Berkeley, as well as both her master's degree and Ph.D. in computer sciences at the University of Texas at Austin. This article originally appeared on USA TODAY:Google engineer killed by falling branch during hike at Yosemite park