Ukrainian open-source investigators said the new restrictions will make it harder to analyze Russian movements.

The Russian parliament adopted a law Wednesday hiking the penalty for personal use of internet devices by frontline soldiers fighting in Ukraine.

The law classifies possession of devices that allow military personnel to store or send video, photos or geolocation data on the internet as a grave offense, punishable by up to 15 days detention.

It also forbids the transmission of any information that could be used to identify any Russian troops and their whereabouts.