Amy Winehouse's dad Mitch has reportedly flown out to the Caribbean amid fears the singer is falling back into her boozy ways.

The Rehab hitmaker has been enjoying a sunshine break in St. Lucia since December following her battle against drink and drugs.

She was taken to a medical facility on the island on Friday night after suddenly falling ill - with a representative for the star claiming the singer collapsed after running out of prescription medication.

And now concerned father Mitch has flown out to be by his daughter's side amid fears she will start drinking again.

A source tells The Sun newspaper, "She needs an eye on her in case she hits the hard stuff."

(This news article provided by World Entertainment News Network)