The United Nations announced Friday four members of its forces are missing five hours after at least 14 people were killed in a multiple Taliban suicide attack on a popular restaurant in Kabul, Sky News reported. "Four UN civilian personnel, who reportedly could have been present in close proximity to the scene of Friday's attack in Kabul, still remain unaccounted for," UN spokesman Ari Gaitanis said. "The UN is making efforts to clarify the status of its personnel.