Rumours about a new instalment in the Pixar series began circulating today (February 19) after a Columbian radio executive tweeted that the film had been confirmed for release in 2015.
However, a rep for Walt Disney Pictures has since told BuzzFeed that "nothing official" has been announced, and the studio is currently investigating the origin of the speculation.
Pixar is currently working on its next picture Monsters University - a prequel to 2001's Monsters, Inc - which is due for release on June 21 in the US and July 12 in the UK.
It has also released teaser artwork for future films including The Good Dinosaur, The Inside Out and Lee Unkrich's untitled 'Dia de los Muertos' project.
Finding Nemo 2 has also been confirmed for release in 2016, with the original's voice actor Albert Brooks recently signing up to reprise his role as Marlin.
Photo gallery - Pixar at the movies: