Prof. Nikolay Radulov warned that the lack of confidence in the Interior Ministry and the security services could lead to a serious terrorist attack in Bulgaria.

Radulov, who is a former chief secretary of the Interior Ministry and security expert, said this in an interview for private NOVA TV on Tuesday.

His comments come after recent media reports that Bulgarian authorities are looking for two suspected terrorists allegedly linked to Islamic State (IS), which have been subsequently denied by the interior ministry.

According to him, the interior ministry is attempting to calm the citizens that there is a moderate threat of terrorism, but in his words this is not the correct approach.

Radulov said that in the current situation there should be tension and people have to help the interior ministry and the State Agency for National Security (DANS) with whatever they could.

The expert reminded that more than two months ago there had been information on the heightened threat of terrorist attack, but Interior Minister Rumyana Bachvarova later disproved the reports.

However Radulov revealed that even the university at which he teaches, received a message from the ministry and the security measures were heightened.

In his view, there was something wrong with the strategy of the ministry in its work with the people and it did not understand the need for receiving information from the people and training them in knowing the signs of terrorist activity.

The contemporary anti-terrorist measures greatly relied on the ordinary people as terrorism has spread beyond the frames of conspiracy groups.

The former chief secretary stated that ordinary people have understood that they have to ensure their own security as the threat was really present.

Radulov concluded by saying that there is no justification to think that Bulgaria will avoid the threat of a terrorist attack.