Muslim majority Indonesia set to vote in its biggest-ever poll

Indonesia kicks off one of the world's biggest one-day elections Wednesday, pitting president Joko Widodo against ex-general Prabowo Subianto in a race to lead the Muslim majority nation.

More than 190 million Indonesians are set to cast a ballot with the vote kicking off at 7:00 am local time (2200 GMT Tuesday) in restive Papua and ending at 1:00 pm (0600 GMT) in Sumatra at the other end of the volcano-dotted archipelago.

A record 245,000 candidates are running for public office in the world's third-biggest democracy, from the presidency and parliamentary seats to local positions.

Opinion polls show Widodo, 57, is a clear favourite -- but he faces a tough challenge from Subianto, 67, who has leaned on a fiery nationalist ticket and warned he will challenge the results over voter-list irregularities if he loses.

Subianto narrowly lost to Widodo in 2014 elections, and unsuccessfully challenged those results.

Voters will flock to more than 800,000 polling stations where they'll punch ...