In this file photo taken on November 8, 2021 activists holding placards attend a candlelight vigil against the impending execution of Nagaenthran K. Dharmalingam, sentenced to death for trafficking heroin into Singapore, outside the Singaporean embassy in Kuala Lumpur. AFP PHOTO
SINGAPORE: A Singaporean drug trafficker was hanged on Wednesday in the city-state's first execution since 2019, campaigners said, despite appeals for clemency from the United Nations and rights groups.