Ukraine’s government on Wednesday urged its citizens not to publish information about missing soldiers and civilians, saying it could help Russia identify high-value prisoners and track people trying to evade capture, Reuters reported.

Deputy Defense Minister Hanna Malyar said people are turning to social media to find more information, including about soldiers who are captured or missing.

“Why are such posts dangerous? The fact is that this particular person may indeed be in captivity, but the enemy considers him a civilian,” she wrote in Telegram.

“Or a person can simply hide in the temporarily occupied territories and look for a way to return. By publishing data and photos of such people, you give the enemy a reference point for searches,” says Malyar.

Publishing details about prisoners’ personal lives, political views, social status or work history greatly complicates the process of their release and often puts their lives at risk, she added.

“This encourages the adversary to look for a specific person, and as a result requests for his exchange increase, and the process itself becomes very complicated,” she said, noting that Russia has so far exchanged 1,030 Ukrainian men and women.

According to her, Ukrainians who are worried about people they cannot track should instead turn to a special unit of the Ministry of Defense created to work with prisoners of war.