A man is in custody after three separate fires were lit 500 metres apart in Canterbury in the early hours of this morning.
The fires occurred around 7am on McLaughlins Rd in Darfield, Southern Fire Communications shift manager Andrew Norris said.
"One was a tractor, one was a couple of trees and one was a shed on a farm.
"They were all about within 10 to 15 minutes of each other," Mr Norris said.
"The first fire was the largest of them and that was a farm building containing some hay and several vehicles."