"Sincere condolences" is a phrase used to show genuine sympathy and express heartfelt sadness for someone who has experienced a loss or is going through a difficult time. Full definition
They will offer their most sincere condolences while politely explaining that they and their insured have no responsibility for the accident. (fararlawgroup.com)
Everyone associated with the club sends sincere condolences to his friends and family at this sad time. (chelseafc.com)
my thoughts and sincere condolences go to the families and friends of those aboard the flight #ForçaChape #Chapecoense @ChapecoenseReal (caughtoffside.com)