Hibernian increased their lead at the top of the Ladbrokes Championship with a 4-0 win over Queen of the South at Easter Road.
Brian Graham, Chris Higgins (OG), David Gray and Martin Boyle were the scorers for Neil Lennon's men in the capital.
Nearest challengers Dundee United drew 0-0 away to Morton and it was also 0-0 between Dumbarton and Raith Rovers at the Cheaper Insurance Direct Stadium.
James Craigen's 15th-minute goal saw Falkirk beat Ayr United 1-0 at Somerset Park to move level on points with fourth-placed Raith Rovers.
Dunfermline Athletic moved out of the bottom two with a 1-0 win over St Mirren at the Paisley 2021 Stadium in the later game. Nicky Clark scored after 26 minutes to leave the Buddies seven points adrift of Dumbarton at the foot of the table.