What should I do?

My kids biological Aunt has became apart of their lives around a year ago. She moved in with her mom and dad. My kids grandparents. A few months ago she got hammered drunk while my kids were there and punched her dad. I addressed this concern with them. But the drinking has gotten worse. Last weekend she got so drunk while my kids were there she got naked and tried sleeping next to them them. She also smashed 3 of my daughter’s fingers in the door. Which would of never happened if she wasn’t drunk. Should I voice my concerns about the drinking while my kids are over there once more or pull them away til she gets it under control?Advice needed??