Spain has imported a U.S.-made experimental Ebola drug to treat a Spanish missionary priest who was evacuated from Liberia last week after testing positive for the killer virus, AP reported. The Health Ministry announced Monday that the ZMapp drug, made by Mapp Biopharmaceutical Inc. of San Diego, was obtained in Geneva this weekend and brought to Madrid to treat Miguel Pajares. The 75-year-old priest was evacuated from Liberia and placed in isolation Thursday at Madrid's Carlos III Hospital. There is no known cure or licensed treatment for Ebola, which has killed more than 1,000 people in the current outbreak in West Africa. The World Health Organization has declared the Ebola outbreak an international health emergency and urged nations worldwide to donate resources to battle the disease. Two Americans diagnosed with Ebola in Liberia and evacuated back to the United States have been treated with the drug. One of them, Dr. Kent Brantly, said last week that his condition was improving and the husband of the aid worker being treated with Brantly said the same thing. Both are being treated in isolation at an Atlanta hospital.