LONDON — Tamara Mellon is taking issue with Jimmy Choo, the footwear and accessories label that she co-founded in 1996, and which she left in 2011.

According to a Sky News report Tuesday, Mellon’s lawyers have written to Jimmy Choo, alleging that Jimmy Choo is asking Italian leather suppliers to commit to not working with Tamara Mellon Brand LLC, Mellon’s own fashion venture, which she founded in 2013.

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Sky reported Mellon’s lawyer’s letter stating that her firm has been “unable to secure suitable production capacity for…luxury leather products and [its] business has been impaired,” Sky reported, allegedly a result of pressure from Jimmy Choo. The letter went on to claim that the restrictions Jimmy Choo is allegedly imposing are in breach of European Union antitrust laws.

A spokesman for Jimmy Choo said in a statement: “We have received a letter which is being evaluated. Our initial assessment is that the complaint has no merit and will be vigorously contested,” the statement read. “We plan to make no further comment until the process is completed.”

According to Jimmy Choo’s initial public offering prospectus — the company has been listed on the London Stock Exchange since 2014 — the company works with 28 specialist suppliers in Italy’s Tuscany and Veneto region, while more than 100 suppliers operate there.

Tamara Mellon’s own label spotlights ready-to-wear, shoes and accessories.