French President Emmanuel Macron demanded an immediate explanation from Russia over the poisoning of Kremlin critic Alexei Navalny, warning that Paris would not allow its red lines on the use of chemical weapons to be crossed. Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en