"Valencia is working alongside its legal team and the appropriate authorities to identify those responsible and, in the case that they are Valencia season-ticket holders, to take corresponding disciplinary action, for which it asks for the collaboration and cooperation of other fans present in said stand".
The incident followed Arsenal's 3-1 win in the first leg.
Thursday night, Arsenal hosted Valencia in the first leg of their Europa League semi-final.
Arsenal started poorly and conceded inside 15 minutes with a goal from a corner.
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The match starts at 19:30 on 4 May 2019. "Huge potential, we think this is an ideal game for him to show what he is capable of". And Spurs were made to pay for not scoring the opener as they were reduced to 10 men just before the half time whistle.
"Thankfully, Auba scored the third one".
Arsenal had conceded nine goals in their last three Premier League games and it was easy to see why in a terrible opening.
Emery, however, has sounded it clear that his side wants to win the Europa League and qualify straight to the Champions League.
Mouctar Diakhaby headed in for the Spanish side from just a couple of yards out even though he was surrounded by three Arsenal defenders.
For a while there was panic in the Arsenal ranks and both Daniel Parejo and Goncalo Guedes threatened a second.
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The IAFF stayed out of the 2016 election, declining to endorse Democrat Hillary Clinton in her bid against Trump. In a separate poll of New Hampshire voters, Biden tops the field with 20%of the primary vote.
He released Aubameyang with a superb pass before arriving in the box to steer a shot past Neto after his fellow striker cleverly held up the ball before squaring it.
Seven minutes later, Arsenal led as awful defending allowed Lacazette a free header from Granit Xhaka's cross and a weak hand from Neto could not prevent the ball crossing the line.
Suddenly Arsenal were rampant and another Xhaka cross found Aubameyang but he bounced his volley over.
Neto did deny Lacazette a hat-trick with a good block midway through the second half while Cech was smartly off his line to prevent substitute Kevin Gameiro from netting an equaliser.
Emerick provided the final nail in the coffin in the final minute, smashing home at the far post after Sead Kolasinac's high cross met him at a tough angle.
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We need to be more intelligent, they (the young players) more than us because we (the older players) are more experienced. Sometimes an experienced player says something and they do not care, or the manager says something and they do not care.