Angel Correa scored a dramatic stoppage-time equaliser for Atletico Madrid against city rivals Real Madrid in a derby that was halted for about 20 minutes midway through the second half following crowd issues.
Shortly after Eder Militao scored Real's opener in the 64th minute, visiting goalkeeper Thibaut Courtois complained to officials that home fans behind his goal were throwing objects on to the field.
An announcement was made over the public address system inside Atletico's stadium and, after speaking to both managers, the referee asked the teams to return to their respective dressing rooms.
Atletico manager Diego Simeone and several of his players attempted to calm the situation by speaking to a group of home supporters in the stand.
Play resumed and Brazil centre-back Militao's earlier deflected strike from inside the box looked like being enough for a Real victory.
However, substitute Correa rounded Courtois to bundle home the leveller and, although the goal was initially disallowed, it was later awarded when the video assistant referee (VAR) confirmed the Argentina international was onside when racing on to the through ball.
There was still time for Atletico's Marcos Llorente to be sent off for a lunging late challenge on Fran Garcia, in a derby contest that only came to life following the temporary suspension.
Simeone was critical of Courtois for celebrating Madrid's goal while looking at the supporters behind him.
"You can celebrate a goal but not by looking at the fans, having a go, making gestures like that," Simeone told DAZN.
"The fans don't just become angry by themselves, they become angry for a reason."
The coach also pointed out Real Madrid fans had thrown lighters at the Belgian goalkeeper in the past when he was an Atletico player.