Aug. 20 (UPI) -- Authorities in Delaware repeatedly called on Dover residents Thursday to "STAY HOME" after a likely tornado caused "significant" damage throughout the city.

The Dover Police Department declared "a state emergency" at 6:20 p.m. EDT, saying the city "likely experienced a tornado, with significant damage reported throughout parts of the city."

"PLEASE STAY OFF THE ROADS AND STAY HOME!!!!!!" it said on Facebook.

The hardest-hit area of the city was the corridor of Division Street and Lockerman Street, it said without detailing specific damage incurred. Earlier, it said the storm downed numerous trees, caused flooding and other "storm-related damage."

Power outages were also reported, it said.