Five young offenders broke out of their units at a Rolleston youth justice facility, climbing on to a roof where they stayed for several hours last night.
Police said one has been charged with common assault after the escape. Other charges are being considered in regards to the others.
Emergency services were called to Te Puna Wai o Tūhinapō in Rolleston, Christchurch shortly after 8.30pm.
The Oranga Tamariki - Ministry for Children - youth justice residence has capacity for up to 40 young people.
Oranga Tamariki deputy chief executive Rachel Letoa said five young people who left their unit and accessed a roof were brought down with help from police just before midnight.