Venezuela accuses opposition politicians of treason over Essequibo

Venezuela has ordered the arrest of several politicians with close links to opposition presidential candidate María Corina Machado.

Attorney-General Tarek William Saab accused them of trying to sabotage last week's referendum over Venezuela's claim to the disputed Essequibo region.

An overwhelming majority of those who voted backed the government's position on Essequibo.

But government critics have raised questions about the turnout.