South Lanarkshire councillors have exchanged fiery words in a row over whether the new administration has been backed by the Tory party.
Labour and the Liberal Democrats formed what they called a a "progressive" coalition last month, to take power away from the SNP.
The Nationalists had the highest number of councillors of any party but fell short of the total needed to form an administration, and were unable to find a partner to allow them to continue in power.