Two goals from Dutch defender Virgil van Dijk and Joe Ledley helped Celtic to a comprehensive win over Ross County on Saturday.
Van Dijk gave the Hoops lead just before the break and the defender doubled the lead, heading home from a Charlie Mulgrew corner shortly into the second half.
County substitute Ivan Sproule reduced the deficit following up from Hoops goalkeeper Fraser Forster's parried save, but Welshman Ledley restored the two-goal advantage before adding a fourth three minutes later.
Celtic head into the international break with a five-point cushion from second-placed Inverness CT.
Meanwhile, Hearts sprung a surprise in the Scottish Premiership by coming from behind to beat 10-man Aberdeen 3-1.
Hearts, who occupy bottom place in the table, had only won twice in the top flight prior to Saturday's victory, but recovered well from Niall McGinn's 26th-minute opener.
Barry Robson was shown a second yellow card 10 minutes after the break, with the dismissal proving a turning point, as Hearts scored three times in 24 minutes through Jamie Walker, Callum Paterson and Ryan Stevenson.
It brought Derek McInnes' side's three-game winning league run to an end.
Inverness took full advantage of Aberdeen's slip up to move second, seeing off Hibernian 2-0 thanks to goals in 18 minutes from Nick Ross and Billy McKay in front of the watching Terry Butcher.
Butcher is set to swap a managerial position with Inverness for one with Hibs in the coming days.
St. Johnstone are fifth after a 3-1 win over Kilmarnock, while Dundee United were comfortable 4-0 winners over Motherwell at Fir Park.
St. Mirren picked up their third win in four league games, condemning Partick Thistle to a third straight defeat in the process.
Conor Newton's 72nd-minute goal was sandwiched in between a Steven Thompson brace, with Stephen O'Donnell sent off 20 minutes from time for the hosts in their 3-0 defeat.
Click above the video to watch all the goals from this weekend's games.