Morton continued their free-scoring cup form with an emphatic win at Forfar in the second round of the Ramsdens Cup.
An astonishing three-goal burst in five second-half minutes gave Morton a soaring lead.
David O'Brien slotted after 56 minutes before Peter Weatherson's free-kick and Peter MacDonald applied the finish to Paul Di Giacomo's cross.
After 74 minutes MacDonald's spot-kick was parried, but netted on the rebound then Archie Campbell completed the win.
Forfar: Paterson, Ross, Bishop, McCulloch, Iain Campbell, Fotheringham, Byers (Hegarty 67), Mowat, Ross Campbell (Gibson 68), Templeman (Motion 68), Crawford.Subs Not Used: Mordente, Bolocheweckyj.
Morton: Stewart, Evans, Weatherson, McCarthy (Little 77), Forsyth, Tidser (McGeouch 63), Bachirou, O'Brien, Di Giacomo, MacDonald, Grady (Campbell 63).Subs Not Used: Deans, Smyth.
Goals: O'Brien 56, Weatherson 59, MacDonald 61, 75, Campbell 78.
Ref: Matt Northcroft