Investigators are trying to figure out how a fire sparked up in Saskatoon’s Pleasant Hill neighbourhood Thursday. Fire crews were called to around 4:00 p.m. after multiple sheds had gone up in flames in the 400 block of Avenue T South. The flames spread to some trees and nearby homes were evacuated as a precaution as crews knocked down the flames. It took about 20 minutes to get the fire under control. No one was hurt.