There is a sizeable chinese people presence there (due to relaxed visa laws, etc), and offices from chinese companies like Huawei. I wouldn't be surprised if this is true.
Huawei? Didn't Vucic sign an agreement w/ Trump few weeks ago to ban sales of Huawei sales?
He did, but I don't think that it had time to come into effect. And that part was explicitly related to 5G technology, which is a relatively vague term. The cameras might or might not come into that.