Police have filed criminal charges against five persons suspected of committing an act of terrorism and two of them are at large, Interior Minister Gordana Jankuloska said on Wednesday.

A special report about 10 persons has been submitted to the Public Prosecution Office in Skopje. The suspects arrested for the massacre near Smiljkovci Lake are still being interviewed by an investigative judge and material evidence is being analysed.

Those detained during the "Monster" police action were transferred to the Skopje Criminal Court early Wednesday. They are expected to be put in pre-trial confinement.

The Ministry of Interior has announced it will submit criminal charges for terrorism against all those for whom there is evidence of being part of the recent massacre of the four boys and a middle-aged man near Skopje.

Twenty individuals have been detained, followers of radical Islam, mostly Macedonian nationals.

The persons have been arrested in several facilities during an operation conducted early Tuesday in Aracinovo, Suto Orizari, Cair and Cento. The Interior Ministry said they found an automatic gun, four pistols, a bomb, eight bullets for "black arrow" rifle, six bullets for grenade launcher, six frames for automatic gun, ten camouflage uniforms, seven tactical vests, a vehicles, around 10.000 euro, computers and cell phones.

On April 12, Filip Slavkovski, Aleksandar Nakevski, Cvetanco Acevski and Kire Trickovski, namely in their late teens and twenties, as well as Borce Stefkovski – who was a 45-year-old man, were brutally murdered on the shore near the village of Smilkovci. They were killed by automatic weapons at close range.

A day later, the police confirmed that "Opel Omega" vehicle found 10km from the murder site was used in the crime near Skopje village of Smiljkovci.