Former Killarney Celtic player Matt Keane was on the scoresheet as Treaty United beat Cork City in the SSE Airtricity League First Division.
Keane got the winner in a 2-1 victory, heading home in the 78th minute.
Athlone Town remain top courtesy of a 3-nil win at home to Wexford.
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Second are Shelbourne after their 3-1 win at Cabinteely.
A late Padraic Cunningham strike salvaged a 2-2 draw for Galway at home to UCD.