An officer has died after clashes between Athletic Bilbao and Spartak Moscow fans in the Spanish city, the country's national police service has confirmed.
The National Police Corps issued a statement via Twitter on Thursday, in which they offered their condolences to the family of an officer from the Ertzaintza, the regional force of the Basque country.
The Royal Spanish Football Federation later named the victim as Inocencio Arias Garcia, a 50-year-old man from Ermua.
"A hug and all our affection to the family and colleagues of the Ertzaintza agent who passed away in #AthleticSpartak incidents at San Mames," the police tweet said.
"NO to violence, aggression and barbarity in sport."
Un abrazo y todo nuestro cariño a la familia y compañeros del agente de @ertzaintzaEJGV fallecido en incidentes #AthleticSpartak en San Mamés.— Policía Nacional (@policia) February 22, 2018
NO a la violencia, las agresiones y la barbarie en el deporte.https://t.co/58Sv4Jo9MI pic.twitter.com/CXh3VWNqXU
The RFEF confirmed Garcia died after suffering cardiac arrest following violence between rival fan groups ahead of Thursday's Europa League meeting at San Mames.
He had collapsed shortly after a flare thrown from the group of Russian fans landed nearby, the RFEF said. He was taken to Basurto University hospital, where he was pronounced dead.
"The officer collapsed during the police intervention that took place when fans of both teams faced each other in the promenade of the San Mames stadium, and moments after a flare thrown by a Russian fan landed close to him," the RFEF said.
"The RFEF wants to express its most resounding condemnation of every kind of violent demonstrations by groups of fans who use sporting events to provoke incidents and riots."
Television footage has shown groups of supporters throwing objects at each other and police outside the stadium before kick-off, after earlier scuffles reportedly saw three Russian fans and one police officer taken to hospital with injuries.
At least five people have been arrested for public disorder offences, according to AS.
LaLiga president Javier Tebas said greater restrictions should have been imposed on who was allowed to travel to the northern city for the match.
"This is madness, something very serious," he said, as quoted by AS. "You have to be forceful against ultra [hooligan] violence, you can't give in and everything must be done to eradicate it once and for all.
"The Russian ultras should not have travelled to Bilbao. They should have avoided it. The worst has happened, because a life has been lost, which is something irreparable."
#LaLiga deplores and condemns the death of a police officer following incidents before tonight's match between Athletic Club and Spartak Moscow and extends its deepest condolences to his family and friends. Say no to violence.— LaLiga (@LaLigaEN) February 22, 2018
|All Blacks ring the changes for series finale with France|
|Sampaoli yet to decide on Argentina XI to face Croatia|
|Bale needs Real Madrid assurances, says agent|
|What game were you watching? - Costa bites back at journalist|
|Catalans capitalise on Leeds collapse to secure victory|
|Ronaldo facial hair inspired by Quaresma joke|
|This is not football - Carvajal criticises Iran tactics|
|Costa strike keeps 2018 World Cup waiting for first goalless draw|
|FIFA fines Mexico over discriminatory chants|
|Suarez announces wife´s pregnancy after World Cup heroics|
|Fortune favours Spain´s ´Supermen´ as luck proves to be Iran´s kryptonite|
|Hubert Green, U.S. Open winner who ignored death threat, dies at 71|
|Osaka injured in Birmingham, Kerber crashes out in Mallorca|
|Iran 0 Spain 1: Costa goal breaks stubborn resistance|
|Cilic battles back but Wawrinka bows out at Queen´s|
|Messi the greatest but Croatia will play to beat Argentina, says Dalic|
|Thiem stunned by Sugita in Halle|
|Salah rejects talk of rift in Egypt camp|
|England Women follow up men´s ODI record with T20I high|
|Southgate laughs off dislocated shoulder: Better me than one of the players!|
|World Cup hosts Russia qualify as Egypt make early exit|
|Pique wins 100th Spain cap in Iran World Cup clash|
|Serbia v Switzerland: Kolarov not interested in playing for a draw|
|Rakitic wary of ´uber-motivated´ Messi|
|Not my finest moment - Mickelson issues apology after U.S. Open controversy|
|´Best in the world´ Messi the victim of unfair treatment, says Sampaoli|
|Suarez off the mark but resurgent Russia will not fear stuttering Uruguay|
|Uruguay 1 Saudi Arabia 0: Centurion Suarez strikes to send La Celeste, Russia through|
|Peru boss Gareca not a fan of ´novelty´ VAR|
|Nigeria v Iceland: Hallgrimsson anticipates another intense battle|
|Griezmann to face Peru despite ankle issue and struggles – Deschamps|
|Leicester sign Norwich´s Maddison|
|Leinster face Wasps, Bath, Toulouse in Champions Cup draw|
|2019 Ashes to start World Test Championship|
|Wizards to face Knicks in London next season|
|Vettel eyeing Paul Ricard profits - French GP in numbers|
|Malaga turn to Muniz once again|
|Amrabat: VAR doesn´t work if you do not use it|
|Suarez earns 100th Uruguay cap|
|You´ve got to look beyond football - Denmark chip in to fly new father Knudsen home|
|Neymar returns to Brazil training after injury scare|
|No passports required - Burnley´s 51-year wait for European tie sees Clarets draw... Aberdeen|
|Huddersfield bring in Bacuna to boost midfield|
|Forget the GOAT and the goatee - just enjoy Ronaldo and Messi|
|Ronaldo bearing down on Daei after going past Puskas - The top five goalscorers in international foo|
|Portugal 1 Morocco 0: Record-breaker Ronaldo sends Renard´s men out|
|Halep pulls out of Eastbourne International|
|Brazil v Costa Rica: Coutinho ready for more Selecao toil|
|Muller and Bierhoff dismiss reports of German disharmony|
|Mooy can play at a higher level, says Socceroos boss Van Marwijk|
|Remarkable Ronaldo breaks Puskas´ European record|
|Belgian Grand Prix deal agreed until 2021|
|Isco: I´m not going to speak to Ronaldo again!|
|Slater expects to be fit for Origin II|
|Curran and Overton added to England ODI squad|
|Hussey fears Australia will be left with ´mental scars´|
|Fabianski swaps Swansea for West Ham|
|Loftus-Cheek ready to replace Alli|
|England are a team now - Rashford|
|Lazaridis calls for Cahill to start against Denmark|
|Arzani and Ryan can play at the highest level, says Bosnich|
|Dust (Ja)pan and brush: Blue Samurai fans clean up in Saransk|
|Lodge reaches agreement over New York attack|
|Gerrard can become a strong manager - Arena|
|Arsenal target Torreira has left for €30m, says Sampdoria chief|
|Murray unsure over Wimbledon participation|
|De Gea has to bounce back from Ronaldo shocker - Bosnich|
|Martinez not looking for perfection|
|Farah´s Wests Tigers return confirmed|
|Cubs get extra-inning win to split doubleheader with Dodgers|