A student at a top private school has been charged with arson after a fire that damaged two classrooms.

Suspicion that arsonists may have been behind a series of spot fires near Rockhampton in central Queensland, lit while firefighters were battling a "terrifying" wildfire, has fuelled community anger.

A fire that gutted the Christchurch "House of Horrors" is a "turning point" for the community, Mayor Bob Parker says.

A man charged with arson following the fire at Prime Minister John Key's Auckland electorate office has been refused continued name suppression.