He said a woman wearing a helmet and gloves appeared to have come off her e-bike and was bleeding and lying motionless.
A man was with her who rang an ambulance, which was on the scene within about five minutes.
“It was not a nice sight. It is scary ... to see someone in such bad shape [due to] a bike crash.”
He said it did not appear a car was involved.
Quite a few residents came outside to see if they could help, but most returned inside to give the paramedics space and show respect, he said.
Police also attended the crash and confirmed one person had come off an e-bike in the incident.