Two people were in hospital overnight Thursday after separate Logan incidents.
Critical care paramedics took a male to Princess Alexandra Hospital after an alleged assault at Boronia Heights just before 8.45pm.
The patient was in a stable condition, with a head injury and lacerations to his arms.
Queensland Ambulance Service could not confirm the patient's age.
A man in his 40s also went to Princess Alexandra Hospital with minor neck and facial injuries, after an incident on North Road at Logan Central.
QAS said he was in a stable condition after the incident which happened about 12.30am.
Police have been contacted for comment.
Read more local news here