French water and waste management groups Suez Environnement and Veolia Environnement on Saturday issued separate statements denying a press report they were working on any sort to tie-up. According to the Le Monde newspaper, talks between the two firms over a possible tie-up were broken off about 10 days ago, with \"the two groups judging the operation too risky\". \"Suez Environnement denies rumours it is working on a tie-up with Veolia,\" Suez said in a statement. \"In response to market rumours, a tie-up with Suez Environnment is not on the agenda,\" Veolia said in its own statement. A source close to the matter told AFP on Friday that discussions had occurred, but said a tie-up would require one of the groups to sell its French operations to respect competition rules. Le Monde said Suez head Jean-Louis Chaussade in August contacted Antoine Frerot, the Veolia chief, to propose a \"a friendly tie-up\", and several working meetings took place in September, with investment banking representatives taking part.