A man is in a stable condition in hospital after being assaulted with a brick in Adelaide's CBD, police have said.
SA Police said emergency services were called to Sturt Street about 10:30am today, in the south-western area of the CBD, after reports that the man had been assaulted.
When officers arrived they found a 54-year-old man with serious injuries.
He was taken to the Royal Adelaide Hospital, where he remains in a stable condition.
SAPOL said officers searched a nearby address for the suspect but did not find him at this time.
Police said the suspect was known to the victim.
Anyone with information that may assist is urged to contact Crime Stoppers.