Humza Yousaf in peril as Greens say they will back no confidence motion

Humza Yousaf will now be forced into a series of deals with his internal critics. Photograph: Jeff J Mitchell/PA

Humza Yousaf could be forced to quit as Scotland’s first minister after the Scottish Greens announced they would back a motion of no confidence against him at Holyrood.

The Scottish National party’s former coalition partners declared they would vote next week against the man who had “betrayed” them, hours after he unilaterally ended their power-sharing deal.