"At this stage, it is not possible to evaluate the chances of reaching any agreement, nor is it possible to be specific about terms and conditions. As appropriate, detailed information on a possible transaction would be given in due course," Safran said in a short statement.

Safran shares ended down 1.3% at 137,24 euros on the French stock market while Raytheon shares were up 0.4% at around 15:40 GMT.

Earlier, Bloomberg reported that Safran was in talks with Raytheon over flight control assets for a deal worth one billion dollars.

(Reporting by Benoit Van Overstraeten; Editing by GV De Clercq)