DULUTH, Minn. (AP) — State agriculture officials say a second infestation of emerald ash borer has been discovered in Duluth.

As a result, the Minnesota Department of Agriculture said Tuesday it is issuing an emergency quarantine for the southeastern portion of St. Louis County.

The quarantine limits the movement of firewood and ash material out of that area of the northeastern Minnesota county.

A state ag department official says Duluth area residents may be tempted to take firewood from within the quarantined area to their cabins and campsites outside the quarantine, but that wood should not be moved.

A tree care company discovered the new infestation of emerald ash borer on private property. The tree-killing pest was first found on Park Point in Duluth in October 2015.