St Mirren beat Morton 3-1 in the Renfrewshire derby at the Paisley 2021 Stadium on Saturday.
Lawrence Shankland's early opener was cancelled out by Denny Johnstone but Calum Gallagher and Stevie Mallan earned Saints all three points.
In-form Raith Rovers hit back to beat Dumbarton 3-2 at the Cheaper Insurance Direct Stadium with second-half goals from Ryan Hardie, Aidan Connolly and James Craigen. Christian Nade and Steven Saunders scored for the Sons.
Alloa and Queen of the South drew 2-2 at the Indodrill Stadium. The Wasps were twice ahead through Iain Flannigan (penalty) and Connor McManus but Derek Lyle (penalty) and Dale Hilson replied for Queens.