Prime Minister Robert Golob will present proposed measures to resolve the Roma issue.
At the same time, a protest rally "Enough is Enough" has been called in front of the city hall.
Mayor Gregor Macedoni called the session due to the worrying deterioration of the security situation in southeastern Slovenia and invited state representatives to attend.
Meanwhile, special units and officers from across the country have been sent to assist. Supervision has also been ordered over the local police department.
Reinforcements will focus on high-risk areas, including the Loke bus station, the school centre, and the village of Brezje.
A 21-year-old man, a member of the Roma community, has been placed in pre-trial detention over the fatal assault.
