BUZZ-Admiral, esure: fall on regulator warning on reserves
** Motor insurer Admiral down 1.6 pct at 1-yr low, esure down 2.6 pct at record low after Prudential Regulation Authority warns at weekend about the risk of early reserve releases
** PRA says car, home insurers "should stand ready to demonstrate the robustness of their reserving governance frameworks" as part of "regular supervisory interactions"
** Insurers due to start preparing FY results in a few weeks, Admiral, esure likely most impacted, says Shore Capital analyst Eamonn Flanagan
** Admiral posted 40 pct rise in reserve releases in half-year results
** Direct Line, RSA shares relatively unscathed (RM (LSE: RM.L - news) : carolyn.cohn.thomsonreuters.com@reuters.net)