6-year-old Jasmina Amena lost her courageous battle to leukemia yesterday. Her mother Thea made the sad announcement: “Today, January 27, at 10:55 p.m., Jasmina lost her fight against leukemia.”

Singers Rihanna and Lil Mama helped rally support to help find a suitable bone marrow donor for their young fan. But it was too late.

Commenting from the White House, U.S. president Barack Obama said:

“It is with great sadness today that Michelle and I extend our condolences on the passing of Jasmina Anema. Jasmina showed tremendous bravery in the face of adversity, and her ability to stay positive throughout her battle was an inspiration to me and to all those she touched. As the parents of two young girls, our hearts particularly go out to Jasmina’s devoted mother Thea. Our thoughts and prayers are with her and with all who knew and loved Jasmina.”