The inaugural Grand Prix of America will be postponed to 2014 due to a financing problem, organisers have confirmed.
The race was pencilled in for 16 June next year but there have been doubts whether it would take place.
Grand Prix of America promoter Leo Hindery Jnr confirmed F1 boss Bernie Ecclestone's claim the race was off.
"We're going to be racing at Port Imperial, unfortunately just not as soon as we hoped," said Hindery Jnr.
Read more about it at BBC Sport