Marc Jacobs claims its entire spring/summer collection 2012 was stolen.

The fashion brand says the clothing set, which was made up of 46 looks, was taken from a train in Paris during a transfer, which led to the company to send out an email cancelling a press day in its London store yesterday (16.11.11).

Dear all. The Marc Jacobs PR team is sorry to inform you that our press day tomorrow in the Marc Jacobs store is cancelled, due to the theft of the spring/summer 2012 collections during its transfer from Paris.

The note read: "Dear all. The Marc Jacobs PR team is sorry to inform you that our press day tomorrow in the Marc Jacobs store is cancelled, due to the theft of the spring/summer 2012 collections during its transfer from Paris."

It is thought the collection was stolen in an attempt to counterfeit the samples rather than sell them on the black market.

Marc Jacobs was also embroiled in further controversy earlier this month when one of its magazine commercials was banned for appearing to "sexualise a child".

The British Advertising Standards Authority (ASA) condemned the advert - which featured 17-year-old Dakota Fanning sitting on the floor in a pale-coloured thigh-length dress with an Oh Lola perfume bottle between her thighs - describing it as "sexually provocative".

An ASA statement explained: "We noted that the model was holding up the perfume bottle which rested in her lap between her legs and we considered that its position was sexually provocative. We understood the model was 17 years old but we considered she looked under the age of 16.

"We considered that the length of her dress, her leg and position of the perfume bottle drew attention to her sexuality. Because of that, along with her appearance, we considered the ad could be seen to sexualise a child."