Humpback whales spotted in Columbia River

KGW-TV, Portland, Ore.

ASTORIA, Ore. -- People near Astoria recently saw some unexpected visitors: humpback whales in the Columbia River.

The whales were spotted just downstream of the bridge between Washington and Oregon, Oregon Public Broadcasting reported.

El Niño conditions along with food shortages are likely reasons the whales were so far from the ocean, OPB reports.

Watch the video of the humpback whales: