By Nahrain John @karryontravel29 Nov 2017A 36-year-old man has been killed and two others seriously injured in a landslide accident along a popular walking track in the Blue Mountains. The National Park contractors were called in to perform a routine check at Wentworth Falls in the Blue Mountains when a rock wall collapsed over them. Nine ambulances, including a Special Operations Team, were called in to retrieve the trio but took up to an hour to reach them due to their location. A major rescue operation is underway in the Blue Mountains after a rock wall collapsed on top of several workers, killing one. @EliseBaker9 is LIVE #9News pic.twitter.com/KPJuZpkg0L — Nine News Sydney (@9NewsSyd) November 29, 2017 It’s believed that the 36-year-old man had passed upon paramedics arrival, while his 26-year-old and 27-year-old co-workers were helicoptered to Westmead Hospital for emergency treatment. One of the men is believed to have suffered from pelvic and leg fractures, while the other is suffering from numerous bodily fractures. According to Channel 10 News, investigations are currently underway to improve safety procedures for contracted National Park staff in the future. READ: QLD vs NSW, which is the best in the eye of the traveller? READ: The best hotels in NSW are… Heard or seen anything new? Share it with us below. Other stories you may like CHEAPER TRAVEL: Aussies receive e-visas & visa-free stays to an Asian country SELLING OPPORTUNITY: Travel Agent says he’s making big bucks from Africa GOING SOUTH: Come on Agents, here’s your last chance to WIN a trip to PERU!