HELENA, Mont. -

Early voting is underway for the June 3 primary elections with more than 185,000 absentee ballots shipped to voters across Montana.

Secretary of State Linda McCulloch cast her absentee ballot in Helena Monday. She says absentee voting has grown exponentially since the law changed in 2000 allowing anyone to mail in a ballot.

McCulloch says 61 percent of the votes cast in the 2012 primaries were through absentee ballots.

The regular voter registration period for the primary elections closes Monday at 5 p.m. People can still register and cast a ballot up through the close of polls June 3.

Late voter registration must be done in person at a county election office or at a designated polling place.