Sadie Frost's clothing company, FrostFrench, has been placed in administration with debts of more than £4m, it was disclosed yesterday.

The FrostFrench label and brand will continue to exist, however, after Frost and her design partner Jemima French set up a new trading company.

A new Norwegian investor has joined Frost and French to create FrostFrench London Retail after the pair blamed problems resulting from management changes two years ago for their original company's trading difficulties. They said their store, in Islington, north London, would remain open despite the closure of the boutique in King's Road, Chelsea. FrostFrench underwear and accessories will continue to be sold at Debenhams.

A spokesman for FrostFrench, which was launched in 1999, said: "Sadie and Jemima relish the opportunity to be fully hands-on again and being able to return to the creative and business helm of a fashion label. Both designers are currently working on their next collection"

Frost, 43, an actress, was formerly married to the film star Jude Law, with whom she had three children.