Over 20 immigrants at the Menoyia detention centre held protests for the second day on Tuesday, as scores of police officers monitored the scene.
Four people protesting on the roof were threatening to kill themselves while another 20 in the yard refused to go back inside.
Amidst loud shouting, they said they wanted better living conditions pleaded not to be deported.
Negotiators were trying to convince the four on the rooftop to calm down and return safely to ground.
Two Egyptian men, aged 24 and 28, who were arrested a day earlier in connection with attacking four police officers were allowed free.
They however claim the police beat them and were medically examined by state pathologist Sofoclis Sofocleous.
Immigrant support group KISA claimed CCTV cameras were conveniently switched off by authorities “so there is no proof in the way police handled the case.”
Sofocleous has prepared a report which he will be sent to Attorney General Costas Clerides along with a police report.
The AG will inform the independent authority for the investigation of allegations and complaints against police (IAIACAP) who is expected to look into the complaint.