(108)The solvency of a subsidiary insurance or reinsurance undertaking of an insurance holding company, third-country insurance or reinsurance undertaking may be affected by the financial resources of the group of which it is part and by the distribution of financial resources within that group. The supervisory authorities should therefore be provided with the means of exercising group supervision and of taking appropriate measures at the level of the insurance or reinsurance undertaking where its solvency is being or may be jeopardised.