A nine-month-old baby boy who had hot coffee poured over him in what police have described as a deliberate and unprovoked attack will undergo surgery today.
The baby and his mother were at Brisbane's Hanlon Park in Stones Corner around midday on Tuesday when a man allegedly approached them and poured hot coffee on the boy.
The baby boy suffered burns after having hot coffee thrown on him. (Supplied)
Police have released photos and CCTV footage of a man who was seen running from the scene and is wanted for questioning over the attack.
The boy's mother said the surgery would help determine the severity of burns to his chin, neck, chest and back.
"No-one wants to see their child go through this and see them in pain," she said.
"He is nine months old. He should be at home playing, having fun, learning, developing. He shouldn't be stuck in hospital with burns, in pain and having difficulty."
The infant will undergo surgery on Friday. (Supplied)
The boy's mother said the attack was "all a blur".
"I play it over in my head constantly," she said.
"From what I remember he literally poured the coffee, stared at us and ran away."
The baby boy took his first unassisted steps on the day of the attack and is now walking again, his mother said.
The nine-month-old is recovering in hospital. (Supplied)
"He seems like his happy self again which is really nice to see," she said.
The boy's family is calling for anyone with information to come forward as police continue to search for the attacker.
"I am finding it very difficult to go on not know why this happened," the boy's mother said.
The baby boy remains in hospital. (Supplied)
Premier Steven Miles said the unprovoked attack was awful.
"There's a special place in hell for someone who'd do something like that," he said.
"I was really pleased to be briefed this morning that the baby is doing well in hospital and I'm sure our clinicians have done a great job taking care of him.
"I know our police are working hard to apprehend that alleged offender."
The man police want to speak with is described as around 30 to 40-years-old, of a proportionate build, with tanned skin.
He was wearing a black hat, glasses, a shirt and shorts.
Detective Inspector Paul Dalton told the ABC on Thursday it would be alleged the incident was "almost like an ambush".
"We're still appealing to the public to have a good look at some of that CCTV footage, particularly a still one that we've released recently," he said.
"I'm positive that, if someone knows the person in that footage, they'll be able to identify them to us."
(Supplied: Queensland Police)