Ireland's citizenship laws relate to "the island of Ireland", including islands and seas, thereby extending them to Northern Ireland, which is part of the United Kingdom. Therefore, anyone born in Northern Ireland who meets the requirements for being an Irish citizen, such as birth on the island of Ireland to an Irish or British citizen parent or a parent who is entitled to live in Northern Ireland or the Republic without restriction on their residency, may exercise an entitlement to Irish citizenship, such as an Irish passport.