Video footage showed several Real players dancing and making gestures towards the Atletico supporters, who responded by throwing objects from the stands.
Barcelona came from an early goal down to beat Real Madrid 5-2 in the Spanish Super Cup final on Sunday
LaLiga leaders Real Madrid's pursuit of a record-extending 36th Spanish title
Real Madrid have signed Alexander-Arnold before his Liverpool contract ended, making him available for the Club World Cup to be played from June 14-July 13 in the United States.
Real outclass Majorca, to meet Barca in Super Cup final
The result means Real, on 49 points, are one point clear of Atletico Madrid, who beat Mallorca 2-0, ahead of next weekend's Spanish capital derby at Santiago Bernabeu.
A stoppage time header by fullback Lucas Vazquez earned 10-man Real Madrid a 1-0 victory at lowly Alaves.
Real Madrid delivered manager Carlo Ancelotti and midfielder Luka Modric a victory in their final game at the Santiago Bernabeu on Saturday, with Kylian Mbappe scoring twice in a 2-0 win over Real Sociedad to end their LaLiga season.
A summary of Saturday's action in the LaLiga, Serie A and Bundesliga.
Kylian Mbappe was in inspired form, scoring twice to guide Real Madrid to a comeback 4-1 win over visitors Las Palmas on Sunday.
'We were happy with the win because we played a great game until the 88th minute, when two lapses in concentration led to two goals and we had to suffer a bit more than we should have.'
Raphinha scored twice as Barcelona overcame a two-goal deficit to secure a crucial 4-3 home victory against rivals Real Madrid in a pulsating Clasico on Sunday, edging them closer to the LaLiga title.
Real booked their place in the final when substitute Arda Guler lifted a corner to Ruediger, who headed the equaliser that put Real Madrid through on aggregate.
A Jules Kounde goal in the dying minutes of extra-time handed Barcelona a dramatic 3-2 win over fierce rivals Real Madrid in an enthralling Copa del Rey final on Saturday.
That kept Real top of LaLiga on 50 points, one ahead of Atletico in second who missed a chance to leapfrog them. Barcelona, third on 45 points, visit Sevilla on Sunday with a chance to close the gap in the title race.
Real Madrid got off to a flying start in La Liga by beating Celta Vigo 3-1 away from home on Saturday with the help of a magnificent long range strike from Toni Kroos.
A summary of Wednesday's Champions League Round of 16, Second Leg, matches.
Karim Benzema's seven-minute hattrick saw Real Madrid thrash Real Valladolid 6-0 in their La Liga encounter
Espanyol secured a commanding lead in their King's Cup quarter-final tie against Sevilla when Felipe Caicedo, Sergio Garcia, with a penalty, and Lucas Vazquez scored in a 3-1 first-leg home win on Thursday.
Real Madrid beat Barcelona 2-1 in the first Clasico of the season in front of 86,422 fans at the Camp Nou on Sunday after a sensational strike from defender David Alaba and a late goal from Lucas Vazquez gave Carlo Ancelotti's side three points.
Girona's Castellanos hits Real Madrid for four in fresh blow to title hopes
Real Madrid returned to the top of La Liga after winning a testing game at Osasuna 3-1 on Saturday.
A summary of Tuesday's Champions League first leg quarter-finals between Arsenal and Real Madrid, and Inter Milan and Bayern Munich.
Real Madrid midfielder Luka Modric came off the bench to net a stunning strike from the edge of the box late in the second half to secure a 1-0 home win over Sevilla on Sunday and stretch their lead at the top of La Liga to eight points.
Cristiano Ronaldo scored a penalty and missed another as Real Madrid beat Real Sociedad 3-1.
Real, chasing a 15th European Cup, levelled in the 83rd with Vinicius's penalty, after Rodrygo was felled by a clumsy challenge from Kim Min-jae, to set up a mouth-watering return leg in Madrid next week.
Sporting marked the final home game of coach Ruben Amorim's reign in stunning fashion as Viktor Gyokeres' hat-trick saw them come from behind to thrash Manchester City 4-1 and maintain their superb start to the Champions League on Tuesday.
Real Madrid's Jude Bellingham again proved the match-winner as he struck in added time to snatch a 2-1 victory over Getafe as the Spanish giants made their home debut in La Liga this season.
Atletico Madrid earned a 1-1 draw away to Girona in a chaotic and entertaining Copa del Rey last 16 first-leg match on Wednesday, leaving the tie finely balanced.
The European champions, who were humbled 3-0 by tiny Eibar last week, took a fortuitous lead when Valencia midfielder Daniel Wass nodded a Dani Carvajal cross into his own net in the eighth minute after former Arsenal defender Gabriel Paulista had failed to clear the danger.
Madrid recovered from an early goal by Anthony Lozano to take a 2-1 halftime lead thanks to a Lucas Vazquez strike and a cheeky 'Panenka' penalty from captain Ramos but were pegged back by Alex Granell's penalty midway through the second half.
Real Madrid thrashed Deportivo La Coruna 6-2 to stay level with Barcelona at the top of La Liga on Wednesday after the Catalans crushed Osasuna 7-1, condemning the minnows to relegation.
Real Madrid paid for defensive mistakes as they were held to a 3-3 draw at lowly local rivals Rayo Vallecano on Saturday.
Real Madrid continued their march towards a 35th LaLiga title
Real Madrid have enviously looked on as Barcelona claimed six La Liga titles in the last eight years, but Zinedine Zidane's side can take a huge step towards a first crown since 2012 with victory over their bitter rivals at the Nou Camp on Saturday.
Newly-crowned European club football champions Real Madrid took their Champions League celebrations on to the streets of Madrid.
Here are five talking points from the weekend in La Liga:
Gareth Bale again came to Real Madrid's rescue by heading home the winner in a 1-0 win at Real Sociedad on Saturday that keeps their title hopes alive.
News of all that's transpired on and off the football field
Cristiano Ronaldo netted a first-half penalty as injury-depleted Real Madrid recovered from their derby defeat by Atletico Madrid at the weekend with a 3-1 win at Levante on Wednesday.