Russian Railways has filed a trademark lawsuit against the iPhone maker. However, the reason isn’t clear, notes “TechCrunch” (http://tinyurl.com/arc5qw3).

The public statement released by the RZD (Russian Railways’ abbreviation in Russian) only notes that the infringement relates to the RZD registered trademark, certificate number 341333, and the use of it in the “online Apple Store” in pictures. This may have to do with third-party apps in the App Store that use Russian Railway’s logo without permission, says “TechCrunch.”