Eight fires have been deliberately lit across the Adelaide plains with a suspect yet to be arrested.

The grassfires were lit between 2.20 and 7.20pm between Two Wells and Dubin north of Adelaide yesterday.

Bushfires south Australia
Bushfires breakout across South Australia during heatwave. (Nine)

“Country Fire Service (CFS) crews were able to bring all fires under control quickly with minimal damage, however the potential risk to local communities was significant given the weather conditions,” SA Police said in a statement.

Police are investigating the incident and patrolled the areas overnight.

All blazes are now controlled.

A cool change has hit the state today, with showers and a top of 24 degrees expected for Adelaide.

It comes as the CFS fought blazes in Port Lincoln and the Eyre Peninsula during the week.

Temperatures remained in the 30s on Thursday night and early Friday morning.

Kingscote, a town on Kangaroo Island, had its hottest minimum temperature in 16 years, only dropping down to an overnight low of 24.9 degrees.

Residents of Kangaroo Flat were issued emergency warning messages to take cover from a blazing bushfire, which was started by the heat, while water-bombing helicopters were called in to help extinguish the blaze.

Sign up here to receive our daily newsletters and breaking news alerts, sent straight to your inbox.
You May Also Like

Protesters tased by cops at chaotic Marjorie Taylor Greene town hall 

Two protesters were tased and several more were arrested during a wild…

Disturbing twist in the death of marketing executive who died from her injuries after allegedly running through a glass door to escape her partner

By ANTOINETTE MILIENOS and CANDACE SUTTON FOR DAILY MAIL AUSTRALIA Published: 21:33…

Grate disappointment: My local pizzeria charged me a ‘bitching fee’ after I spoke up about an incorrect order

No complaining here. This one patron got charged a “bitching fee” at…

Back to reality! Bec Judd and her AFL star husband Chris make a low-key arrival at Melbourne International Airport after partying it up at Coachella Festival in the US

Rebecca Judd and her husband Chris went incognito on Wednesday as they…