South Australian Police are investigating the unexplained death of an infant at a motel in Adelaide’s south-eastern suburbs.

Emergency services were called to the Tollgate Motel in Glen Osmond from about 9 am on Saturday. The motel is located beside the South Eastern Freeway, approximately five kilometres south-east of Adelaide’s central business district.

Police vehicles and ambulances attended the property during the morning. Witnesses reported seeing several police vehicles, while some estimated that around 20 officers were present at the scene.

Police established a cordon around part of the motel as officers carried out their investigation. The area remained under police attention through the morning, with officers leaving the scene by mid-afternoon after securing the relevant location.

Authorities have confirmed that the cause of the infant’s death has not yet been determined. No confirmed explanation for the circumstances surrounding the death has been released, and it would be premature to draw conclusions while the investigation remains underway.

Crime-scene investigators and Eastern District Detectives are assisting with inquiries. Police are preparing a report for the coroner, who will consider the available evidence as part of the process for determining the circumstances of the death.

The investigation is at an early stage, and officials have not publicly established whether the death involved any criminal conduct. No conclusions about responsibility or the cause of death should be drawn from the police presence at the motel.

The incident has brought a significant emergency response to the Glen Osmond area. The motel’s location near a major freeway means it sits close to one of Adelaide’s important transport routes, although authorities have not reported that the investigation has caused any wider disruption to freeway traffic.

Further information may be released as investigators establish the circumstances and the coronial process progresses. For now, police have confirmed that inquiries are continuing and that the cause of death remains undetermined.