Lightning was responsible for at least three Gwinnett County house fires late Friday night and early Saturday, authorities said.

Homes caught fire in Dacula and Lawrenceville as thunderstorms moved through metro Atlanta, Gwinnett Fire Lt. Justin Wilson said.

Firefighters responded to a 12,000-square-foot home on Luke Edwards Road in Dacula just before 11:30 p.m. after a lightning strike ignited a small blaze in the home’s basement.

About 30 minutes later, crews were called to another fire at a quadraplex in unincorporated Lawrenceville. The fire was extinguished, but the homes were left with moderate fire and water damage, authorities said.

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Shortly after 12:30 a.m., firefighters responded to a third blaze at a home along Autumn Shore Drive near Lawrenceville. Wilson said the residents reported hearing a loud boom before smoke started billowing out of the kitchen.

Everyone made it out the home safely, but seven people — four adults and three children — were displaced. They are receiving temporary assistance from the American Red Cross.

In other news: 

Police arrested a man who threw a lit firework at a police officer.