The economy ministry said firms in the transportation, agriculture and fisheries industries would be eligible for the "flash fuel loans" of up to 50,000 euros ($57,600).

The programme fulfils a pledge made last week by Prime Minister Sebastien Lecornu, whose government, like many worldwide, is seeking to contain the economic pain caused by the war's impact on fuel prices.

Public investment bank Bpifrance will issue the loans via a streamlined digital process that will make the money available within seven days, the ministry said in a statement.

The three-year loans will have an interest rate of 3.8 percent.

Separately, French Economy Minister Roland Lescure said he had written to the European Commission to ask it to investigate whether the continent's refineries were taking advantage of the war to commit "abuses" in setting fuel prices.