The incident reportedly took place at a open hospitality center in Elliniko, a suburb Athens, the capital city of Greece.
The suspects have been identified as 18, 23, and 37-year-old Afghan refugees and are due to face charges for attempted murder against two other Afghans, aged 19 and 31 respectively.
The police is also searching for accomplices, local newspaper, TO BHMA reported, citing police reports.
The report further added that the 18-year-old suspect and his 23-year-old brother lead a group who harassed and assaulted other refugees at the camp with knives and bats, in order to gain the ‘upper hand’.
The 16-year-old refugee was killed after being stabbed during an altercation at the Elliniko camp last week on Thursday, after rushing to protect the 19-year-old Afghan who was being assaulted by the three suspects and their gang.
This comes as hundreds of thousands of Afghan refugees are stranded in Greece and other parts of Europe amid a refugee crisis in Europe.
The Afghan refugees started heading towards the European countries in mid-2015 amid political and economic uncertainties followed by deteriorating security situation.