WASHINGTON (AP) — Shares of Sarepta Therapeutics plunged Monday after the biotech drugmaker reported a second death in connection with its gene therapy for muscular dystrophy.

Ticker: Second patient death reported with gene therapy for muscular dystrophy; Salmonella poisoning linked to pistachio cream

Duchenne muscular dystrophy patient died after being treated with the gene therapy delandistrogene moxeparvovec (Elevidys), Sarepta Therapeutics said Sunday. Like the first case reported, this patient developed acute liver failure (ALF) that resulted in death.