Japanese media exit polls say the ruling coalition is headed to victory in the country's parliamentary election.

Several major TV news shows and the Kyodo News agency cited their exit polls and reported almost as soon as voting booths closed Sunday that the ruling coalition, headed by Prime Minister Shinzo Abe's Liberal Democratic Party, had won enough seats to keep its majority.

They said that the opposition had lost many of its seats.

Half of the seats of parliament's less powerful upper house were up for grabs.

There was no possibility for a change of power because the ruling coalition controls the more powerful lower house of parliament.