Hussain was 63 and Pakistani media reports say he suffered a fatal heart attack yesterday.

"It is very saddening to learn of this loss," Asian Hockey Federation President Fumio Ogura said.

"I will pray for the departed and also that his family find solace in this tough time."

The men's hockey title won at Los Angeles 1984 remains Pakistan's most recent Olympic gold medal.

As well as captaining the victorious team, Hussain carried Pakistan's flag at the Opening Ceremony. 

Eight years earlier, Hussain helped Pakistan win an Olympic bronze medal in Montreal.

Hussain played for Pakistan at a time when the country was the dominant force in world hockey. 

Pakistan and Hussain won World Cups in 1978 and 1982, as well as winning Asian Games gold medals the same years.

Hussain won 175 caps for Pakistan and scored 86 international goals.

At the time of his death, Hussain was chairman of the Pakistan Hockey Federation's (PHF) Selection Committee.

The PHF said its President and secretary general were among thousands of mourners to attend a memorial service in Lahore today.