Ugly scenes marred Argentina's 2-2 draw against Morocco in their opening match of the men's Olympic football tournament with riot police required to protect players after fans stormed onto the pitch.
The match had been highly anticipated amid Argentina players signing a racist chant following their victory at the Copa America earlier this month, targeted at French players.
Argentina's national anthem was booed pre-match, with the South Americans then going 2-0 down against a well-backed Moroccan team in Saint-Etienne.
A goal from Giuliano Simeone and a stoppage time effort from Cristian Medina saw Argentina fight back to level the match.