Mary-Kate and Ashley Olsen have been forced to postpone their catwalk show at New York Fashion Week.

The designer siblings had been due to showcase their latest collection for their upmarket label The Row at the city's Milk Studios tomorrow (14.09.10) but had to cancel because of delayed sample deliveries and will now present at Paris Fashion Week instead.

In a joint statement, they said: "We have made the decision to postpone our spring-summer 2011 presentation of The Row due to sample delivery. Production and delivery of our samples is delayed by a few days and this has cast us out of the New York schedule. We will therefore present it to the market within the Paris schedule. We are excited and are looking forward to presenting our collection."

Paris Fashion Week takes place from September 28 to October 6 and although they are yet to decide on a final venue for their showcase, it is thought Mary-Kate and Ashley want an intimate setting rather than a runway extravaganza.

The 24-year-old sisters launched The Row in 2007 and have won rave reviews for their exclusive collections, which include categories like outerwear, knitwear, eveningwear and sunglasses. They also have two other ranges, Elizabeth + James and Olsenboye.