Failures in the "dysfunctional" car insurance market have "encouraged criminality" in some areas, according to the head of a parliamentary transport committee.
Louise Ellman, Labour MP for Liverpool Riverside, said: "This is our fourth report on the cost of motor insurance and while premiums are now falling, aspects of the market remain dysfunctional and have encouraged criminality to take root.
She said further action was needed to tackle fraud which the report said is pushing up insurance prices for motorists.
More top news
Theresa May has launched her bid to become the next leader of the Conservative Party.
The government is set to announce that David Cameron's successor will make the decision on whether to expand Heathrow or Gatwick.
Michael Gove is to stand for the Conservative Party leadership, saying he does not believe Boris Johnson can "provide the leadership".