Police are searching for a man who fled the scene of a chase near Lehigh after he was chased by a witness who said he punched a witness in the face.
The man, believed to be in his 30s, ran after the man and punched him in the mouth on the A55 at Wooronga about 11.30pm on Tuesday.
He was caught by a passer-by and taken into custody.
Police are searching his car in the Woorongah area for evidence.
Witnesses at the scene said they saw a man hit a witness with his car and then leave the scene.
Detective Inspector Mike Taylor said the witness and the man were both in the same car and were driving northbound on the motorway.
He said the driver did not have a licence plate and was believed to have been travelling northbound from Lehigh.
“The witness told police the man ran after him, punched him and left the scene,” Detective Inspector Taylor said.
“We are still looking for the man, but we do not believe he was driving.
The witness was not injured and is expected to return to Lehigh police station on Thursday.
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