Civil Defence is urging residents of quake-ravaged Christchurch to steer clear of large trees as aftershocks continue to rattle the city.
A number of trees were uprooted during last month's 6.3 magnitude quake, and later as soil conditions changed due to liquefaction.
Civil Defence said trees that suffered root damage could topple in high winds or an aftershock and should be felled.
The organisation also issued updates on a number of essential services including water, toilets and welfare services.
Running water has been restored to 89 percent of Christchurch households, with 120 teams working to fix broken pipes.
Water was also available from five tankers, 57 static tanks and 10 pump stations around the city.
About 60 percent of residents have access to a flushing toilet but breaks in the system were causing sewage to leak into the ground.
Residents were advised to make use of more than 1400 portaloos around the city, with 1160 more due to arrive this week.
More than 30,000 chemical toilets have also been ordered.
Tomorrow Civil Defence will hold community briefings at Brooklands Domain, St Albans Park and Oaklands School.
