To which country belongs St Paul's Island, also known as Selmunett?

St Paul's Island, also known as Selmunett, is a small island off Selmun near the north-east of the main island of Malta. The Acts of the Apostles tell the story of how Paul the Apostle was shipwrecked on an island which Chapter 28 identifies as Malta while on his way to Rome to face charges. Traditionally, St. Paul's Bay and St Paul's Island are identified as the location for this shipwreck.