Chilean officials ordered most residents already evacuated from homes near an erupting volcano to stay in shelters and with family and friends Sunday due to the threat of deadly landslides. The ash spread across the Pacific, prompting authorities to suspend flights in Australia and New Zealand. The Cordon Caulle volcano's activity had diminished, but there was still a threat of deadly landslides containing mud and water as well as rocks and ash thrown from the volcano, Chile's National Geology and Mines Service said in a statement. About 4,000 Chileans have been evacuated since the volcano began erupting June 4. Employees of a car rental company wash cars covered by volcanic ash and sand at the airport in San Carlos de Bariloche, Argentina, Friday, June 10, 2011. A soldier helps Maria Monica Quintana, right, and her daughter Milagros Nazar Anchorena carry water to their home in La Angostura, southern Argentina, after the area was affected due to the eruption of the Chilean Puyehue-Cordon Caulle volcano Wednesday, June 8, 2011. Dead fish float at the Nilahue river after the eruption of the Puyehue-Cordon Caulle volcano in Rininahue, southern Chile, Wednesday, June 8, 2011.