Fraudulent claims for injuries caused by motor accidents jumped by 39% last year, a new Saturday by insurer Aviva found.
Almost two-thirds of detected fraud cases related to car accidents, said the FTSE 100 group, with motor claims alone totting up to £23 million.
Fraudsters have also switched emphasis, said Aviva, with damage claims surging by 123% as whiplash fraudsters moved credit hire and repair.
Injury claims accounted for 35% of all bogus claims, with a 19% rise in declined fraudulent injury claims.
In total, Aviva detected more than 11,000 suspect claims worth £116 million or 30 bogus claims a day.
A further 13,100 claims are under investigation for fraud, it added.
Aviva said it had doubled its claims investigation team in response to the fraud surge, while boosting its investment in detection tools and prosecutions of people making fake claims.