Selma Blair is speaking out weeks after her arrest following an alleged altercation aboard a flight from Los Angeles to New York, issuing an apology and saying she takes the matter seriously.

"I take this very seriously," she said in an Instagram video on Friday. "What I can tell you though is very simple, and the truest thing I know about myself in that not one day ever have I intended to hurt or frighten anyone a day in my life. And so to the people that I disappointed, that I hurt, that I frightened, alarmed: I am so sorry."

The actress was arrested and charged with assault following an alleged incident on the Oct. 11 flight.…