Japan's ruling parties are projected to secure a majority of the 125 seats up for grabs in the July 10 House of Councilors election, a Kyodo News survey showed Thursday.

It also suggested that parties that are for revising the Constitution, including Prime Minister Fumio Kishida's Liberal Democratic Party and some small opposition parties, would maintain the two-thirds majority in the 248-member Upper House needed to initiate any amendment.

For the upcoming election, 124 seats — 74 in electoral districts and 50 appointed using proportional representation — are being contested, together with one left vacant in the other half of the chamber.