Emergency services treating series of fires in Auckland's CBD as suspicious

Emergency services are treating a series of blazes overnight in Auckland's CBD as suspicious. 

Seven Fire and Emergency vehicles were deployed to a smoking building on Fort St just after 3am on Thursday. 

Crews then noticed a second fire on the same block, this time on Custom St East. 

Officials said both fires were small on arrival and crews managed to reach the scene before the flames spread through the three-storey complex. 

No injuries have been reported and police have been notified due to suspicion of arson.