The Office of Fair Trading is offering rewards of up to £100,000 for information on price fixing in the UK commercial vehicle market.
It also holding out the possibility of immunity from prosecution to anyone involved in the alleged cartel activity who provides information to the investigators.
The move comes less than a week after the European Commission investigators raided the offices of truck manufacturers in search of evidence of cartel activity.
The OFT investigation, which is separate from the commission’s, was launched in September last year. It involves both civil and criminal investigations into suspected cartel activity among commercial vehicle manufacturers, involving possible price-fixing, market-sharing and/ or other forms of anti-competitive collusion.
In its search for evidence, it is now offering rewards of up to £100,000 under its informant rewards programme.
It said: “In particular, the OFT would be interested to hear from any person who may have information relating to suspected contacts between individuals from competing commercial vehicle manufacturers operating in the UK.