Hispanic voters have helped drive the early voting numbers, which appear to outpace overall turnout for previous elections in some battleground counties.

The change was announced amid backlash over the school's handling of gang rape allegations involving a fraternity on campus.

The collision involving a Robinson R22 and an Airbus helicopter occurred on Thursday afternoon, with both aircraft crashing in a field adjacent to a highway.

Machado, who was in exile for nearly a year, said the transition in Venezuela's government would be "irreversible, organised, pacific".

The PM's Likud party has alleged foreign interference and said Arab-led parties "stole" the election after his coalition lost its majority.

The leaked tapes appear to show one high-speed train was given clearance to move at normal speed, even though another up ahead had stalled.