Lebanese authorities on Wednesday found the world's last missing sample of the killer influenza virus and are keeping it in a "safe place," a Health Ministry official said. The sample was found at Beirut's International Airport and officials are waiting for orders from the U.N. World Health Organization on whether to destroy in Beirut or send it back to them. "It is at the airport. It is sealed in a safe place," Dr. Walid Ammar, the Health Ministry's director general, told The Associated Press. "We are sure it's the missing sample." "Everything is under control," he added, responding to a question whether there are any dangers. Earlier in the day, the U.N. World Health Organization said that all samples of the killer influenza virus mistakenly sent outside the United States have been destroyed except for one in Lebanon. A WHO spokeswoman, Maria Cheng, said the sample that had gone missing in Beirut "was found at the airport" and that it "will be destroyed soon."