Los Angeles: Singer Mariah Carey's brother has branded her a "monster".
The "Hero" hitmaker has been accused of only caring about herself by older sibling Morgan Carey, 51, who called on her to do more to help their sister Alison, who was arrested for prostitution last week, reports femalefirst.co.uk.
"Mariah doesn't care about anyone other than herself and it's always been that way," Morgan told Inside Edition magazine.
"I would hope Mariah could find it in her heart to forgive Alison her transgressions and step up, create a trust, let's make sure Alison's needs are met," he added.
A spokesperson for the 46-year-old singer insisted she had done a lot over the years to help Alison.
"Through the years, Mariah has spent hundreds of thousands of dollars supporting Alison and her children," the spokesperson said in a statement.
However, Morgan claimed her actions had done more harm than good.
"I will always be puzzled why Alison, a heroin addict, has always been given large sums of money from Mariah her whole life. You can't put large sums of cash into the hands of a drug addict," Morgan said.
Carey, who is engaged to billionaire James Packer and has five-year-old twins Moroccan and Monroe with estranged husband Nick Cannon, is believed to have had no contact with Alison, 55, since 1994.