“We urgently need the public’s assistance and help; if you have any dashcam, CCTV or information contact @EssexPoliceUK on #101, #999 in an emergency or @CrrimestoppersUK.
One dad said his daughter was injured in the crash. He said: “A Ford Ka mounted the pavement behind her.
“Her friend was bounced onto the bonnet before another boy was hit very badly.
“The car drove off down the road and the police arrived quickly. My daughter is safe, but the wing mirror clipped my daughter. Her friend got thrown off the bonnet.