17 Jun, 19:25
Ireland pulled clear of hosts Canada with four tries in the closing half hour as they earned a 40-14 victory at the BMO Stadium on Saturday night. Check out some photos from the Toronto tussle.
Willie Anderson will take over as caretaker coach until a successor to Williams has been appointed.
Speaking about the departure of Williams, Leinster CEO Mick Dawson said, "Leinster are disappointed to lose the services of Matt Williams, yet we do understand the attraction of moving to an international position. Matt has done well here in Leinster and we had a good working relationship."
Leinster are expected to begin the search for a new Director of Rugby straight away.