Czech President Milos Zeman said that there are two theories about what caused the 2014 ammunition depot explosion in Vrbetice, after Prague sparked a diplomatic furor last week when it blamed Russian spies for the deadly blast. #MilosZeman #VrbeticeBlast #Reuters #News 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