Rihanna vows to help leukaemia victim

Rihanna is desperately seeking out possible bone-marrow donors for a five-year-old leukaemia sufferer - because it "broke her heart" to hear of the young girl's struggle.

The singer was shown a video of brave New Yorker Jasmina Amena, and vowed to do all she could to help find the sick youngster a bone-marrow match.