WELLINGTON, New Zealand – Two American climbers and another from Canada are believed to be dead after attempting to summit New Zealand’s tallest mountain, police announced on Friday. HOW TO WATCH FOX WEATHERThe search began on Monday when Americans Kurt Blair, 56, 50-year-old Carlos Romero and an unidentified Canadian man did not show up for their return flight.Police said the three had flown to a camp on Aoraki/Mount Cook on Saturday.Aoraki/Mount Cook is the official name of the more than 12,000-foot tall peak in the Southern Alps.HOW TO SURVIVE IF YOU GET STRANDED IN THE WOODS THIS WINTER”We do not believe that the men have survived. We believe they have taken a fall,” said Vicki Walker, the lead investigator.Police said they found climbing items earlier in the week but had to stop the search due to bad weather. They were able to resume the search on Friday.”Our search teams have been hampered by ongoing treacherous alpine conditions,” Walker said. “It has been too windy for helicopters and simply too dangerous to put teams into the environment.”Walker said she notified the victims’ families Friday.Both Cook and Romero have profiles as guides on The American Mountain Guides Association website. The site lists Cook as based out of Colorado and Romero as based out of California.The association is a non-profit that says it is dedicated to supporting the “American mountain guiding community.”