A fan invasion in the opening match of the Olympic football tournament between Argentina and Morocco on Wednesday caused chaos.

But former champions Argentina were eventually beaten 2-1, following a video assistant referee (VAR) review after play was suspended with the scores tied at 2-2.

Argentina’s Cristian Medina scored deep in injury time to salvage what looked like a 2-2 draw, but the decision ruling out the goal was delivered about two hours after play was suspended. That was when the teams re-emerged on to the pitch to finish the match in an empty stadium.

Host France defeated USA 3-0 in Group A, New Zealand defeat Guinea 2-1, and Spain beat Uzbekistan 2-1 in their opening match of Group C.

Other results saw Iraq beat Ukraine 2-1, Egypt and Dominican Republic settled for a goalless draw, Japan thrashed Paraguay 5-0 and Mali held Israel to a 1-1 draw.