A teen has been arrested after allegedly stabbing a man in Christchurch.
The incident occurred at a Northcote Rd address at around 2am Saturday.
A 43-year-old man is in critical condition in Christchurch Hospital and police said a 19-year-old has been arrested in relation to the incident.
No one else is being sought.
Part of Northcote Rd is cordoned off while a scene examination is carried out.
Detours have been put in place.