Iran's participation at the Paralympic Games in Rio ended with a gold medal in sitting volleyball which was dedicated to cyclist Bahman Golbarnezhad, who died following a crash 24 hours earlier.
Golbarnezhad is the first athlete to die during Paralympic competition, the International Paralympic Committee said, after a crash in Saturday's men's C4/C5 road race. He was 48.
Iran's eighth gold medal of the Paralympics came with a 3-1 win over Bosnia and Herzegovina on Sunday's final day of competition.
Masoud Ashrafi, the secretary general of Iran's National Paralympic Committee told Press Association Sport: "There is one bitterness and one sweetness. Today we are so happy because the sitting volleyball team were able to win the gold medal.
"And we are going to present this gold medal to the soul of Bahman Golbarnezhad."
A joint investigation involving Rio 2016, the IPC, Rio police, medical authorities and cycling's world governing body, the UCI, has been opened to establish the full circumstances of what was described as a tragic accident.
The Iranian flag was flown at half-mast at the Riocentro venue for the sitting volleyball final, where Iran played Bosnia.
A moment's silence was observed and Iran won the first set before a lapse in concentration allowed Bosnia back into the contest.
Iran - including Morteza Mehrzadselakjani, the tallest man in Iran, at 246cm (8ft 1in) - showed their class in the third and fourth sets to win 3-1.
Jubilant celebrations followed as a country tinged with sadness finished the Games with a gold medal.
Earlier International Paralympic Committee president Sir Philip Craven reflected on Saturday's tragedy.
"Yesterday's passing of cyclist Bahman Golbarnezhad has caused huge pain in my heart and I can only imagine what his wife and his son must feel like, waking up this morning and sadly knowing that yesterday was not a horrendous dream," Craven said.
"Although yesterday's events do cast a dark shadow over these Games, I think Rio 2016 will be remembered as a successful Paralympics and Games which surprised many people.
"They will be remembered as the people's Paralympics."