Up to 35 workers are trapped in two prominent Christchurch buildings, hard hit in today's 6.3 magnitude quake.
Thirty people are believed trapped in the Pyne Gould financial services building on Cambridge Terrace, with another five trapped in the Christchurch Press building.
Search and Rescue officials, who are working throughout the night, maintain their efforts are focused on rescue rather than recovery.
Two people, who were in the central city Christchurch Cathedral, which was badly damaged in the earthquake, are also missing.
Inner city buildings badly damaged:
Cathedral (2 people missing)
Copthorne Hotel, Colombo St
Provincial Chambers, Cnr Durham & Armagh Street
Pyne Gould, Cambridge Terrace (30 people trapped)
Forsyth Barr, Colombo Street
Press Building, Cashal St (5 trapped)
Canterbury TV, Madras St
Chch Star, Tuam St
Christ College, Rolleston Ave
Piko Wholefoods, Kilmore Street
Arts Centre, Hereford St
In a bookshop at Riccarton
In a car at the corner of Lichfield St and High St
At Sumner RSA, Wakefield Ave
At the YHA Hostel, Manchester St
Canterbury TV building, Madras St
Latimer Sqaure, Central City
Spotlight Mall, Sydenham
- NZ Herald staff