An internal investigation will be launched by Queensland Police after a man died in custody on Saturday.
Emergency services were called to Alice Street in Maryborough in south east Queensland around 11.50am for a welfare check.
Police say they were responding to reports of a man in his 30s acting erratically before he was restrained.
The man was sedated and transported to hospital via ambulance.
Police said he experienced a medical episode and died a short time later.
The incident will be looked at by the Queensland Police Ethical Standards Command.
