SAN FRANCISCO — The coldest winter may be a summer in San Francisco — but not this Friday, and especially not at the Russian consulate.

One day after President Trump ordered the closing of the consulate here, and in the middle of the hottest day ever recorded in the city's history, the consulate decided to get a fire going in the Pacific Heights building's fireplace.

Plumes of black smoke pouring from the roof alarmed city residents, who called the fire department to check on the six-story brick building.

However once there, consulate staff told firefighters it was merely a fire in the fireplace and there was no danger. Firefighters were not allowed to enter the building.

The San Francisco Fire Department tweeted out "The Russian embassy had a fire alarm NOT A FIRE everything is okay and we are clearing Thank you."

The incident came the day after the Trump administration retaliated against Russia's expulsion of U.S. diplomats by ordering Moscow to close its San Francisco consulate and scale back its presence in Washington and New York City.

The closures must happen by Saturday, Secretary of State Rex Tillerson told Russian Foreign Minister Sergei Lavrov on Thursday, the State Department said.

In addition to closing its San Francisco consulate, Russia must also shutter an official residence in the city. The order closes the chancery annex in Washington and the consular annex in New York City, which house Russian trade missions to the United States. Those activities may continue in other U.S. cities.

Trump orders Russia to close San Francisco consulate, scale back presence in D.C. and NYC

Friday was the hottest day on record in San Francisco, with temperatures in the city reaching 106 degrees according to the National Weather Service, and an Excessive Heat Warning in effect.

Due to the heat which was causing high smog levels, a Spare the Air day was in effect from the Bay Area Air Quality Management District. The alert urges residents to cut back on activities that cause pollution, including driving and using gasoline-powered lawn mowers.

The Air District tweeted that it had sent an inspector to the Russian consulate and if they documented an excessive smoke violation, the Russians would be cited.

During winter Spare the Air days it is illegal to burn wood, firelogs, pellets, or any other solid fuels in fireplaces. During summer spare the air days, such activities are not illegal.

Contributing: The Associated Press