Emergency services responded to a significant apartment fire in Adelaide’s CBD on Wednesday morning, with police treating the blaze as suspicious and arresting an 18-year-old woman. The fire occurred in an apartment complex on Old Treasury Lane, just off Frome Street, shortly before 10:30am.

Firefighters, police and ambulance crews attended the scene after reports of a fire inside the multi-storey residential building. The incident prompted a major emergency response as crews worked to contain the flames and ensure residents could safely leave the building.

One occupant escaped from a second-storey window onto a veranda during the incident. Another person was taken to hospital for medical assessment, while a further person received treatment from paramedics at the scene. The fire was brought under control at approximately 11am.

Firefighters continued operations after the main blaze had been contained, with crews using an elevated platform to access parts of the building. Smoke and water damage were visible around the affected apartments, highlighting the extent of the emergency response.

South Australia Police are investigating the circumstances surrounding the fire. An 18-year-old woman has been arrested on suspicion of arson, although the investigation remains ongoing and the allegations have not been established in court.

The incident has raised concerns among residents of the apartment complex and surrounding Adelaide CBD community. Fires in multi-storey residential buildings can present particular challenges for emergency crews because smoke can spread rapidly through shared areas and residents may have limited escape routes.

The response involved multiple emergency agencies working together, including South Australian Police, the Metropolitan Fire Service and SA Ambulance Service. Their immediate priorities were containing the fire, assisting residents and checking the building for anyone who might still require assistance.

Investigators will now work to establish how the fire started and whether it was deliberately lit. Police will also examine evidence from the building and speak with witnesses as part of the investigation.

The arrest means the matter is now progressing through the legal system. Any charges and subsequent court proceedings will determine the formal allegations against the arrested person.

The incident is one of Adelaide’s major local breaking-news developments today and remains under investigation. Authorities are expected to provide further information as inquiries continue.