Voters in Puerto Rico have supported a non-binding referendum to become a full US state.
The measure will require approval from the US Congress, but President Barack Obama has said he will respect the vote.
The island is currently a US territory, which uses the dollar and whose citizens travel on US passports.
But it does not return senators to the US Congress and is represented in Washington by a non-voting delegate.
Almost 80% of the island's electorate took part in the referendum, the fourth in the past 45 years.