“We don’t know the exact motives of this Russian vessel, but let’s not be naïve. Especially if it behaves suspiciously near our wind farms, gas pipelines and underwater data cables and other critical infrastructure”, the minister said in a statement. The suspicious building was moving in this area “without AIS (Automatic Identification System), a mandatory security system that allows you to automatically know the identity of ships”, further specified Vincent Van Quickenborne.