A detention services officer was slightly injured during unrest at the Safi Detention Centre, at around 3am.
A small group of irregular immigrants dislodged a number of stone slabs from a wall with the aim of escaping from their accommodation block.
This activity was noted by an alert detention service officer who immediately raised the alarm and called for the assistance of his colleagues. The group of immigrants responded by throwing back broken stones, hot water and other objects at their disposal.
The situation was brought under control within a few minutes by the detention officers with the intervention of police officers from the Zurrieq police station and the Rapid Intervention Unit.
The incident is being investigated by the Police.