April 11 (UPI) -- Police arrested a 20-year-old man for allegedly throwing a Molotov cocktail at OpenAI CEO Sam Altman's home in San Francisco.

Around 4:00 a.m. local time, the man reportedly threw the incendiary device at Altman's house, causing a fire to a gate outside the home.

The man was arrested less than an hour later when he was allegedly attempting to burn down OpenAI's offices, police said in a statement.

In a lengthy blog post on Friday night, Altman said that he was "underestimated the power of words and narratives," after an actual incendiary device was hurled at his house following the publication of an article about him that he also called "incendiary."

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