Highlights: Boca Juniors 1-1 River Plate
Sunday's superclasico between Boca Juniors and River Plate was again marred by crowd trouble.
The match at La Bombonera, which ended in a 1-1 draw, was twice delayed due to incidents involving supporters.
River had taken the lead when Manuel Lanzini headed home after only 43 seconds, but Boca - struggling near the foot of the table - levelled when Santiago Silva fired a shot across goalkeeper Marcelo Barovero seven minutes before the break.
In the second half, though, the football was overshadowed by crowd trouble, with the Boca fans unveiling a giant banner mocking River's recent stint in the second division that read: "You went down to 'B' cause of f**king around and s**tting yourselves."
Blue and yellow flares - the Boca colours - were let off and fans climbed the fences. Security forces reacted by firing water cannons, and play was delayed for ten minutes.
River coach Ramon Diaz was also sent off for dissent towards the referee, as Boca fans chanted "You're from the 'B'", while a second delay occurred near the end when a flare went off behind River goalkeeper Barovero.
The draw leaves River in third place and Boca two places from the foot of the table.