Sirte (/ˈsɜːrt/; Arabic: سرت‎‎, ; from Ancient Greek: Σύρτις), also spelled Sirt, Surt, Sert or Syrte, is a city in Libya. It is on the south coast of the Gulf of Sidra (ancient Syrtis Major, from which Sirte's name is derived). Sirte lies halfway between Tripoli and Benghazi. The settlement was established in the early 20th century by the Italians, at the site of a 19th-century fortress built by the Ottomans. It grew into a city after World War II.