Inspector Chris Ahearn said a crash occurred at a nearby intersection about 12:30pm, and when the drivers emerged from their vehicles an altercation took place.
“A person has received a stab wound and a male person has fled that scene,” he said.
Inspector Ahearn said a short time later, the attacker from the earlier crash tried to carjack a number of vehicles at a car wash business while the drivers were still inside them.
He said the man then went to a McDonald’s and tried to steal a car from a motorist waiting at the drive-through.
“[The driver] challenged the offender and he has received stab wounds,” Inspector Ahearn said.
“We believe two others going to his aid also received stab wounds.
“We have a total of four people who have received stab wounds.”
Two men were taken to Princess Alexandra Hospital in stable conditions, a third was taken stable to Royal Brisbane and Women’s Hospital, while the fourth patient was taken stable to Logan Community Hospital.
Inspector Ahearn said a 32-year-old man was in custody and receiving treatment in hospital.
“He has received some knife-type wounds as well.
“It’s really concerning that something like this would happen in our community.”
‘A fair bit of blood on the ground’
Kerry Hollindale, who said he was a friend of one of the victims, said he arrived at the scene about 10 minutes after the attack.
“There’s my mate laying on the ground beside his car with a fair bit of blood on the ground,” he said.
Mr Hollindale said the man, a father of two, was waiting for food in the drive-through.
“There was a bit of a scuffle, a bit of a fight, and in the process my mate got stabbed,” he said.
“He seems to be OK. They won’t really tell me at the moment but he’s just been taken to the PA hospital.
“I called his wife to let her know he was OK. She was a little bit distraught.“