The firefighter was sent to the hospital as a precaution after being assessed for back pain.
A blue tent was seen near the perimeter fence bounding the dog run.
Ms Wee joined Ms Chinatown Singapore 2022 despite her cancer diagnosis.
He was identified and arrested within four hours of the police report being made.
The accident caused congestion after two lanes were cordoned off by the authorities.
A driver was trapped in their seat after the accident, and was rescued by the SCDF.
Netizens said the man will also age and see changes in his body.
The two men refused to break apart even after getting back on their feet.
The case is still under investigation.
The injured motorcyclists were aged between 18 and 55.