Volkswagen AG called off the next round of talks over a planned integration with sports carmaker Porsche SE, saying the atmosphere is not right for constructive discussions, officials said Sunday. The Wolfsburg-based car maker had pulled out the next round of talks at the working group level that were scheduled for Monday, VW spokeswoman Christine Ritz told The Associated Press. VW chairman Ferdinand Piech and members of the Porsche family-controlling shareholders of Porsche Automobil Holding SE - will come together as planned at a meeting of Porsche's supervisory board Monday, she said. Porsche declined to comment.