Tony Watt tallied a goal in each half as Celtic coasted to a 4-2 win at Inverness on Saturday.

After an early header from Victor Wanyama put the Hoops in front, Watt produced a nice piece of individual skill to double the lead in the 24th minute as he touched the ball around a defender and easily finished off the play by finding the corner of the net.

Charlie Mulgrew increased the advantage to 3-0 in the opening minutes of the second half as he was picked out inside the penalty area by Adam Matthews' free kick, allowing the midfielder to convert his first goal of the season.

Watt found the net again in the 64th minute with Matthews setting up the goal once more, while Celtic fell asleep in the final 10 minutes, allowing Ross Draper to score a pair of consolation goals.

After three successive draws to start the season, Ross County claimed its first win as Richard Brittain converted from the penalty spot in the 72nd minute to lift the promoted side to a 1-0 win at Dundee, which has yet to find the net in four games.

Hibernian is tied atop the league with Celtic after a 2-0 victory over St Johnstone that saw the club get goals from Paul Hanlon and Eoin Doyle, while Kilmarnock handed Dundee United its first defeat of the campaign in 3-1 fashion as the club scored three times in a 10-minute span early in the second half.