Bohemia Interactive Studios CEO Marek Spanel has posted a statement about the arrest of a pair of BIS employees for espionage (thanks Computer and Video Games). Here's their explanation of what happened:

We can confirm that two Bohemia Interactive employees, our colleagues and friends, were arrested during their holiday trip to Lemnos. They visited the island with the sole purpose of experiencing the island's beautiful surroundings.

Since its establishment in 1999, Bohemia Interactive has created games based only upon publicly available information. We always respect the law and we've never instructed anybody to violate the laws of any country. The same is true for Arma 3.

Currently, all our effort goes towards supporting the guys over there, as well as their friends and families affected by this difficult situation. We sincerely hope that this is an unfortunate misunderstanding of their passion as artists and creators of virtual worlds.3