SPOKANE, Wash. -

Spokane is seeing a large infestation of carpenter ants.

Tim Kohlhauff of WSU-Spokane County Extension says his office is being deluged with phone calls about the insects.

The Spokesman-Review reports the ants are swarming because of the rapid change in weather, which caused them to mature at once.

Kohlhauff says the swarm should subside as soon as mating season is over.