"Please note that there have been such threats in North Macedonia for nearly a year.

For a year, the society there has been harassed by similar threats.

In recent months, the authorities have decided not to disclose any more.

Two citizens of North Macedonia were detained.

We should not rule out the possibility that rather a whole group is behind the bomb threats."

Lyubomir Tulev, an expert in cyber security, commented on this in the "This Morning" show