La Liga have sent a letter to the Spanish FA complaining about violent and offensive chants at El Sadar and the Benito Villamarin in the Osasuna v Real Madrid and Betis v Barca games. Objects were also thrown.
Regarding the encounter in Pamplona, some 400 fans in the lower tier of the south goal made offensive chants against Real Madrid and Sergio Ramos. Even "Ramos, die" was heard.
Furthermore, in the 37th minute of the match, after Ramos made it 1-2, a lighter was thrown onto the pitch which did not strike anyone. The league say the object was quickly picked up by an Osasuna player and thrown off the pitch.
There were also chants against Roman Zozulya of Albacete, who saw their match at Rayo abandoned two months ago for this very reason.
La Liga do mention though the fact that Osasuna made PA announcements in the 38th and 78th minutes calling for "respect". The efforts Osasuna went to to prevent trouble were also mentioned.
At Betis, the first thing mentioned was that a kid with a Sevilla shirt was insulted repeatedly by around 500 Betis fans 27 minutes before kick off near the south goal. This is where the hardcore Betis support sit. The kid had to be taken away and relocated. There were also several chants against city rivals Sevilla.
During the game, there was also trouble. The referee was insulted and in the 76th minute, after the controversial dismissal of Nabil Fekir, several bottles were thrown onto the pitch. The ballboys removed them and no one was struck by them. La Liga say the refere spoke to the stadium manager after this to make an announcement on the PA system. Lastly, ex-Sevilla player, Clement Lenglet, now of Barca, received insults as he left the pitch after being sent off for a second yellow card.