SINGAPORE (AP) _ A Hong Kong man convicted of trying to smuggle heroin into Singapore was hanged today at dawn in Changi Prison.

A statement from the Central Narcotics Bureau identified him as Chan Chi Pun Daniel, 38.

Chan was arrested on Nov. 20, 1990, at Changi Airport upon arrival from Phuket, Thailand. Customs officers said he was wearing a cloth vest with 16 pouches containing slabs of heroin weighing a total of 16.4 ounces.

Death is mandatory for anyone convicted of trafficking in one-half ounce or more of heroin. Possession is regarded as trafficking.

He was found guilty on May 8, 1993, and his appeal was rejected on April 14, 1994, the statement said.

Since Singapore made the death penalty mandatory for trafficking in 1975, 97 people have been hanged, more than half of them foreigners.