Espanyol's team bus was vandalised by Athletic Bilbao supporters after arriving at San Mames for Wednesday's Copa del Rey semifinal first leg, according to AS.
The bus, which carried players and coaching staff from the team hotel to Athletic's stadium ahead of the 1-1 draw, was left with its windows shattered, although there were no injuries.
Espanyol team bus attacked on a heated night in Bilbao - http://t.co/kV9Lw5S5iM pic.twitter.com/gaxBzOqA0d
- AS English (@English_AS) February 11, 2015
It had earlier been welcomed by Espanyol supporters and greeted by a corridor of flares, before being targeted by radical Athletic fans.
The prematch atmosphere was already heated, with a fan of Espanyol being attacked near the stadium just hours earlier, AS reports.
Aritz Aduriz opened the scoring for Athletic, before Victor Sanchez levelled for the away side. The second leg is to be played at the Estadi Cornella-El Prat on March 4.