Fire and Emergency New Zealand is banning the use of fireworks in parts of Christchurch.

The ban will include Akaroa, Bottle Lake and the Port Hills.

The ban comes into effect from 6pm today.

Overnight on Friday there was a significant fire above Hillsborough which burnt through 25ha and caused around 40 homes to be evacuated.

Fenz has confirmed the blaze was caused by fireworks.

As a result, and with conditions drying out around Christchurch, Area Commander Dave Stackhouse is banning the use of fireworks under Section 52 of the Fire and Emergency Act.

Section 52 of the Act allows Fire and Emergency to restrict activities that may start or cause the spread of fire.

"These are all high-risk areas and what we saw on Friday night was completely unnecessary and avoidable.

"In Christchurch, we are seeing temperatures peak in the high 20s and low 30s. Ground conditions are dry, and a spark can quickly turn into a dangerous fire.

"Using fireworks should be completely out of the question, and we will take a very dim view of anyone who is found to be using them while this ban is in place."

Stackhouse said they are asking residents living around the Port Hills, Bottle Lake and Akaroa to keep an eye out for fireworks or other suspicious activity.

If you see anything suspicious, call 111.

"The public are our eyes and ears and with its help, we can quickly respond and get to fires before they become too difficult to contain."

All of Canterbury is moving into a restricted fire season from 11.59pm tonight.

"In extreme conditions it only takes a spark to start a devastating wildfire. That spark can come from a campfire, a gas cooker, a charcoal barbeque or a vehicle exhaust.

"We saw from yesterday's fire at Redcliffs that a spark from a grinding tool can start a fire that can quickly spread and endanger homes."