Update, Tues 10:30 AM : It's now reported senior Stephanie Kuleba underwent breast augmentation surgery Saturday.
Saturday paramedics arrived at a Schuster Plastic Surgery in Boca Raton and rushed Kuleba to Delray Medical Center where she died. Authorities are not releasing details into the cause of her death.
We'll continue to follow this story and bring you any updated information as it's released.
Reporter: Lindsay Cohen
Previously: A popular high school senior suddenly dies after out-patient surgery.
We're told less than 24 hours ago, more than 400 people gathered at West Boca High School to honor and remember a much-loved friend and classmate.
Flowers line the fence of the school senior Stephanie Kuleba once attended, and there weren't enough hugs to heal the pain. "Everybody knew by 10 in the morning," says classmate Leila Milgrim.
Her friend, Alex Martinez, describes, "I was like in shock. I didn't know how to react."
It was for many, impossible to react to the loss of their beloved classmate Stephanie Kuleba. She was the co-captain of the cheerleading squad. And, it seems, a friend to everybody. "She was a good person," says Vicky Goldring. "There was nothing bad about her."
"Everyone's taking it hard. It's a really hard thing to deal with. She was really an amazing person, and everybody misses her a lot," Leila adds.
Police say Kuleba died after undergoing outpatient surgery Saturday morning, and word traveled quickly.
Fellow cheerleaders and friends mourning their loss are now leaving candles and messages. One reading, "Hey, Jude, don't make it bad." A tribute to Kuleba honoring her middle name.
"It shouldn't have happened to her. It shouldn't happen to anybody."
"Everyone misses her, and they still can't believe that it happened."