UPDATE: Almost all power restored after fire at substation on Cleveland’s west side

CLEVELAND -- A fire at an electrical substation on West 41st Street left about 40,000 people on Cleveland's west side without power Tuesday night, Cleveland Public Power said.

A FOX 8 viewer sent us video which appeared to show a transformer in flames.

At about 9 p.m., CPP said the power had been restored, but some customers were still in the dark.

The City of Cleveland in a news release said it was changing warming center locations due to the outage.  Michael Zone Recreation Center is closed, but Gunning Park Recreation Center will remain open.

“We know that power outages are always inconvenient, but with the extreme cold temperatures they are also dangerous,” said Mayor Frank G. Jackson. “Even though power has been restored, we are keeping all of our resources involved as we monitor the situation, and we are still encouraging people to check on their neighbors and relatives to make sure they are safe.”

The following warming centers will remain open until further notice:

The power company says they working to restore power, which they estimated could take about three hours.  CPP also tweeted that they were working on an "interim repair" for the problem at the substation.

Cleveland police advised drivers to treat traffic signals affected by the power outage as stop signs.  All intersections should be treated as four-way stops.

Stick with Fox 8 News and FOX8.com for updates on this story as it becomes available.