Dortmund and Liverpool both charged by UEFA

Borussia Dortmund and Liverpool will both face investigation after being charged by UEFA during the Europa League quarterfinals first leg match.

Dortmund fans were alleged to have blocked stairwells during the draw on Thursday. Meanwhile, Liverpool fans were reportedly using fireworks to celebrate Divock Origi's opening goal.

Liverpool has already been charged once by UEFA this season. The previous accusations came during the Europa League final-16 second leg against Manchester United. Fans of the Reds were using illicit chants and creating crowd disturbances at Old Trafford.

The charges come as a surprise considering that crowd behavior during the match was so good, fans of both teams joined in singing "You'll Never Walk Alone".

The match yesterday was not the only one in the Europa League to be investigated by UEFA.

Sparta Prague fan were accused of committing "acts of damage" during their club's quarterfinal match against Villareal yesterday. Prague has also been previously charged this season after reportedly setting off fireworks along with unfurling offensive banners during their final-16 match against Lazio.

UEFA's Control, Ethics, and Disciplinary Body will deal with these charges on May 19 as confirmed by the organization.