A landslide and bluff collapse were reported Monday morning along Lake Michigan at a power plant in Oak Creek, Wis.
No injuries were reported, but at least two semi-trailers appeared part of the landslide at We Energies, chopper footage from the WTMJ affiliate showed.
"We have a report of a bluff failure on the south end of our Oak Creek power plant property," Rick White of We Energies told WTMJ. "We're investigating it now."
The landslide occurred about 11 a.m. near the construction site of a new air quality control system. Tool and equipment storage trailers slid down the bluff, but operations at Oak Creek site were not affected, according to the We Energies.
The company confirmed all employees and contractors have been accounted for.
Police on the scene continued to search for the cause of the landslide along with power plant officials.