The 44-year-old van driver was arrested for traffic-related offences.
The victim is yet to be found.
As DPM, Mr Gan Kim Yong will be Acting PM in Mr Wong's absence.
The chief believes there are other group members who are still at large.
They also brought down a street light, which they would have to pay for.
It is unclear if the rider sustained any injuries.
It is unclear why the rider was using their mobile phone.
Apparently, according to the song, the "friendly father" makes "all [their] wishes come true".
When confronted, the woman brushed it off, saying she has no time to feed the birds.
The man was launched around 15 metres out of the car into a nearby ditch.