The Negev Nuclear Research Center (Hebrew: קריה למחקר גרעיני – נגב‎) is an Israeli nuclear installation located in the Negev desert, about thirteen kilometers to the south-east of the city of Dimona. The purpose of Dimona is believed to be the manufacture of nuclear weapons. Israel acknowledges the existence of the site, but refuses to disclose any information about its purpose in a policy known as nuclear ambiguity. Information about the facility remains highly classified.