Last week, Monster Beverages was charged with a lawsuit for negligence and wrongful death. The suit was filed by the family of Anais Fournier, the 14-year-old Maryland girl who died of a heart arrhythmia last year, reportedly caused by drinking two 24-ounce cans of Monster Energy in less than a day. The family believes the company failed to to warn consumers of potential problems that arise from exposure to high caffeine levels.

Now the Food and Drug Administration is looking into incident reports of five deaths allegedly connected to the the consumption of Monster Energy drinks. The reports do not prove any direct correlation with the energy drink, but they do serve as a record of the events leading to the deaths.

One 24-ounce can of Monster Energy contains 240 milligrams of caffeine, in comparison to 132 milligrams in a 10-ounce cup of Dunkin’ Donuts coffee and 330 milligrams in a 16-ounce Starbucks Grande coffee .

Energy drinks enjoyed about a 17% sales growth last year, with Monster at the forefront in the industry, having grabbed 35% of market share. We’ll see how the controversy plays out.

[via Los Angeles Times]