Mick Jagger's publicist has denied that the Rolling Stones singer split up with fashion designer L'Wren Scot before her presumed suicide on Monday at her Manhattan apartment.

According to People.com, 70-year-old Jagger began dating Scott in 2001. Jagger's publicist issued a statement Monday night denying a story that the pair had split up.

"The story in the New York Post re a split between Mick Jagger and L'Wren Scott is 100 percent untrue," said Jagger rep Victoria Scarfone. "There is absolutely no basis in fact to this story. It is a horrible and inaccurate piece of gossip during this very tragic time for Mick."

The Rolling Stones canceled the Wednesday night launch of their Australian tour, according to USA Today.

The 49-year-old fashion designer was found dead by her assistant Monday morning in her New York apartment. She reportedly hung herself on a doorknob.

"The Rolling Stones concert in Perth will not be going ahead as scheduled for Wednesday 19 March 2014," the group's site said. "No further information is available at this time, ticket holders are asked to hold on to their tickets until a further update is available."

There's no word on whether any other shows will be canceled. The Stones are due to perform in Sydney, Melbourne and Macedon later this month before playing two dates in Brisbane and Auckland, New Zealand, in April. The tour is slated to move to Europe in June, with concerts planned for the Netherlands, Germany, Italy and Belgium.

The Associated Press and some British websites reported Scott's fashion business seemed to be struggling. Accounts filed by her company, LS Fashion Ltd. in London, show liabilities that exceeded assets by $5.9 million, as of Dec. 31, 2012.

Scott launched her fashion brand in 2006. Sarah Jessica Parker, Angelina Jolie, Nicole Kidman wore her gowns to the Academy Awards, while others such as Reese Witherspoon, Christina Hendricks, Sandra Bullock and first lady Michelle Obama also have worn her designs.

She also designed for films, having contributed costumes to "Diabolique," "Ocean's Thirteen," "Eyes Wide Shut" and "Shine a Light," Martin Scorsese's documentary about The Rolling Stones.