At least 10 ministers have offered their resignations as a leadership crisis in Australian politics deepened Wednesday with another challenge against Prime Minister Malcolm Turnbull appearing inevitable.

The embattled leader narrowly survived a move to unseat him by his populist Home Affairs Minister Peter Dutton on Tuesday with a Liberal party ballot voting 48-35 in his favour.

It came to a head after months of poor opinion polls and a revolt by fellow Liberal politicians on Monday against his plans to embed carbon emissions targets in law at a time of soaring power prices.

Despite Turnbull’s win, it laid bare that dozens of his own MPs do not want him as their leader, and Dutton worked the phones and blitzed the airwaves Wednesday to shore up more support for another widely-expected crack at the top job.