Hibernian remain three points clear at the top of the Ladbrokes Championship after a 3-0 win against Ayr United at Somerset Park.
Martin Boyle grabbed a double and John McGinn was also on target for Neil Lennon's side, who have the best defensive record in the SPFL.
Second-placed Dundee United saw off Queen of the South 4-1 at Palmerston with goals from Mark Durnan, Tony Andreu, Scott Fraser and Simon Murray. Grant Anderson netted for Queens.
Dumbarton earned a crucial 1-0 win away to bottom club St Mirren to move out of the relegation zone. Garry Fleming got the only goal just after the hour mark to leave Saints still seeking their first Championship victory.
Morton were denied a fifth straight league win when Lee Miller scored a stoppage-time equaliser for Falkirk after Lee Kilday had given the visitors the lead with just three minutes left at the Falkirk Stadium.
The Fife derby between Dunfermline Athletic and third-placed Raith Rovers ended in a 0-0 draw at East End Park.