Fourteen people have been arrested in connection with the terrorist attack in Vienna, Austrian interior minister Karl Nehammer said, DW reported.

All the arrestees are immigrants between the ages of 18 and 28, some of whom are Austrian citizens. An investigation is underway to find out their participation in the terrorist organization.

Vienna police chief Gerhard Purstl added that the arrestees include people with dual citizenship— including those originally from Russia, Turkey, Bangladesh, and North Macedonia.