The UK is ready to go for polls in a historic referendum on whether the country should remain a member of the European Union or leave.
An estimated 46,499,537 people are entitled to take part in the vote – a record number for a UK poll.
It is only the third nationwide referendum in UK history and comes after a four-month battle for votes between the Leave and Remain campaigns.
Polling stations are open between 07:00 BST and 22:00 BST.