A firearm is being examined by forensic experts after it was found on a road near the shores of Lough Neagh.
Army technical officers closed the Oaklead Road, Ballyronan, while the weapon believed to be a shotgun, was examined yesterday morning.
The road was later re-opened to traffic.
Police say the firearm was located following an earlier report of suspicious activity in the area.
"The firearm has been taken away for further examination," a PSNI spokesman said.