Amid widespread calls for tougher treatment of violent teenage criminals, Victoria's deputy police commissioner has warned that only rehabilitating them will make the state safer.

After riots on the weekend and Monday caused widespread damage at the Parkville youth justice centre, the government confirmed on Thursday it would send about 40 young offenders from Parkville and Malmsbury to Barwon Correction Facility within "the next few days".

Police at the Parkville youth detention centre on Monday. Credit:Justin McManus

The children will be kept in a secure unit within the prison, separate from mainstream prisoners. The prison will operate as a youth remand centre and youth justice custodial centre.

Children's Minister Jenny Mikakos​ said this would send "a very strong message" to the young people.