CLEVELAND, Ohio -- Hopkins International Airport is reporting a partial power outage Tuesday morning that it says could affect some flights.

The airport did not say what caused the power outage, although thunderstorms did move through the region overnight.

Due to a power outage, flights will be delayed/cancelled. Please contact your airline for more information. — Cleveland Hopkins (@goingplacesCLE) January 23, 2018

As of 5:45 a.m., a Delta flight to Minneapolis and a United flight to New York were listed as delayed, while a Southwest flight to Milwaukee was canceled, according to the airport's website. There were no delays or cancellations on arriving flights. However, the airport is urging travelers to check with airlines about the status of flights.

Lights on streets and parking lots at the airport were not working and some escalators and elevators were affected, the airport said.