WATCH: Catch up with the Irish provinces' highlights from Round 4 of the Pro 12

Three sides won but Connacht slipped to another defeat

Leinster, Jonathan Sexton

Leinster's Jonathan Sexton scores a try ©INPHO/Billy Stickland

On the whole, the weekend's Guinness Pro 12 action was pretty positive from an Irish perspective.

Table-topping Ulster continued their fine form with a win away at Glasgow Warriors to make it four from four, while Leinster saw off Ospreys with Jonathan Sexton back in action.

Munster also enjoyed a bonus point victory with two Conor Murray tries helping them past Edinburgh.

Unfortunately, the one setback results wise was Connacht's defeat at Scarlets which is their third from three.

Check out highlights from the action below: 

Glasgow Warriors 17-22 Ulster

 Leinster 31-19 Ospreys

 Munster 28-14 Edinburgh

Scarlets 17-8 Connacht