Supermodel Alessandra Ambrosio's representative has moved swiftly to dismiss reports suggesting the Victoria's Secret stunner has split from her fiance Jamie Mazur.

Rumours suggested the couple recently separated while continuing to work on their relationship, but the rep insists they're still engaged.

She says, "It's not true, they are still happily together."

The 32-year-old model and Mazur became engaged in 2008 after three years of dating. They have two children, five year old Anja and son Noah, 17 months.