Federal Health Minister Mark Butler has rejected private health insurers’ proposed premium increases for the second time, stating that the submissions are not reasonable and urging insurers to resubmit more justifiable figures, the ABC reports.

Health funds argue that their costs have risen significantly, creating financial strain that could lead to insolvencies.

Health insurance premiums are scheduled to rise on April 1, and any increases above inflation could pose a political challenge for the government ahead of upcoming elections focused on cost-of-living issues.