Charmayne Maxwell, known for her work with the ‘90s girl group Brownstone, has passed away on February 28. She was 46 years old. The cause of her death has yet to be confirmed, but her brother Brandon took to social media to share the horrible news. “R.I.P my beautiful sister Charmayne ‘Maxee’ Maxwell,” Brandon Maxwell tweeted. “I can’t even believe I’m typing this right now.” He adds, “Bad things happened to the most innocent people. My sister died in the most terrible way, and I’m in so much pain right now.”

Brandon also posted a message on his Instagram page along with a picture of Charmayne. “R.I.P to my beautiful sister Charmayne ‘Maxee’ Maxwell. I’m so devastated because you deserved to stay on this earth much longer. You had such an amazing talent and you went really far with your singing career. I felt so inspired from you and it gave me motivation to become the best performer I could be. I love you so much sis, I’m so grateful I was able to have you in my life,” he wrote. He also dismissed rumors that Charmayne allegedly killed herself, calling the speculation “BS”.

Bad things happened to the most innocent people. My sister died in the most terrible way and I’m in so much pain right now.

— brandon (@brandonrmaxwell) March 1, 2015

A photo posted by Brandon Ray Maxwell (@brandonraymaxwell) on Feb 28, 2015 at 7:38pm PST

@brandonrmaxwell Your sister touched lives with her gift of song. Beautiful voice that I drew to. Condolences to UR family & RIP Charmayne

— Chyna Nicole (@ChynaNicole) March 1, 2015

Charmayne rose to fame as part of Brownstone’s original lineup. The group was signed under Michael Jackson’s MJJ Music label. Their debut album, From the Bottom Up, was a huge success. The record went platinum and spent 37 weeks on the Billboard chart.

Maxwell eventually left the group to pursue a solo career. As a solo artist, she became a big hit in Europe. During her time in London, she recorded the dance hit “When I Look Into Your Eyes”. She is married to Danish producer Carsten Soulshock.

Initial reports by the Danish media about her death say that Charmayne died due to a mysterious fall during her son’s soccer game, while TMZ reports that her death was due to a cut to her neck.