Sri Lankan President, US diplomat mourn Karunanidhi's death

"I am deeply saddened by the death of former Chief Minister and senior political leader Karunanidhi," he said in a tweet, extending his condolences to the bereaved family and party cadres.

US Ambassador to India Kenneth Juster, in a tweet, said, "Karunanidhi will be remembered for years of public service to the state."

"On behalf of the United States Mission in India, I wish to extend our heartfelt condolences to the family of former Chief Minister Karunanidhi and the people of Tamil Nadu," he said.