20-year-old arrested after throwing Molotov cocktail at Sam Altman's San Francisco home, OpenAI says

SAN FRANCISCO (KGO) -- A 20-year-old suspect has been arrested after throwing a Molotov cocktail at OpenAI CEO Sam Altman's San Francisco home, the company says.

According to a statement from an OpenAI spokesperson, the suspect also made threats at the company's headquarters. No one was injured in the incident.

The house is in the Russian Hill neighborhood of San Francisco, just below the famous crooked section of Lombard Street.

The incident unfolded around 4 a.m. Friday when someone "threw an incendiary destructive device" at the house, which sparked a fire on an exterior gate, San Francisco police said.

The suspect fled on foot, but police said his description was dispatched to officers.

Around 5 a.m., officers responded to OpenAI's headquarters where a man was allegedly threatening to burn down a building, and they "recognized the male to be the same suspect from the earlier incident," police said.

Police say charges are pending for the suspect.

The company said the situation is under control and there is no immediate threat to its offices.

"We deeply appreciate how quickly SFPD responded and the support from the city in helping keep our employees safe," OpenAI said in a statement. "The individual is in custody, and we're assisting law enforcement with their investigation."

The FBI said in a statement that they are aware of the incident and are working with SFPD to "determine if any violations of federal law were committed."

ABC News contributed to this story.