Justin and Jessica fuel split rumours

Justin Timberlake and girlfriend Jessical Biel fuelled reports their relationship is in trouble after they failed to show up at a casino opening.

The couple, dating since 2007, have recently been dogged by rumours they plan to split, with a source telling US newspaper The Chicago Sun-Times: "Things are not going as smoothly as (Biel and Timberlake) would want people to think they are."

The stars then added to the speculation when they failed to deliver a scheduled promotional appearance at the launch of an Indiana Live Casino in Shelbyville, Indiana on March 13.

And their absence infuriated many members of the 8,000-strong audience.

Guest Marian Flemming said: "It was ridiculous. They promised us that Justin and Jessica were going to be here, so we came down to check out the new casino and had hoped to see the two stars. When they did not show up, we simply felt cheated."