A late point earns Cavan ladies a 3-18 to 6-8 win over Armagh in their All-Ireland SFC group as Mayo beat Tyrone 3-14 to 3-11.
The explosive device was found during undercover surveillance of suspected dissident republican activity.
Tyrone are drawn away to Kildare and Armagh will travel to Mayo in the third round of the All-Ireland Football qualifiers.
Malachy O’Rourke steps down as Monaghan manager after their All-Ireland second-round qualifier defeat by Armagh at Clones.
Monaghan are drawn to face Ulster provincial rivals Armagh in the second round of the All-Ireland Football qualifiers while Tyrone play Longford.