ACT Fire & Rescue has evacuated approximately 150 people from a building on Moore Street in the city while investigating a smell of smoke.
The ground floor, level one and level two has been evacuated. There has been no sign of fire.
Three pumpers, hazmat, Bronto aerial platform, commander and support unit have attended with support from ACT Ambulance Service.
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Crews were alerted following an Emergency Triple Zero (000) call just after 12.26pm.