Arsenal say they have identified a suspect who “embarrassed” the club by throwing a bottle at Tottenham player Dele Alli during the Carabao Cup quarter-final between the north London rivals at the Emirates.

The incident occurred halfway through the second-half of Wednesday night’s clash, when Alli went to retrieve the ball from the crowd for a throw-in.

The bottle struck Alli on the head, but the 22-year-old was not hurt and reacted by making a 2-0 gesture to the home fans, which was how the game ended, sending Spurs through to a semi-final against Chelsea.

In a statement, Arsenal said: “We have all been embarrassed by the individual who threw a bottle at Dele Alli during Wednesday night's match against Tottenham Hotspur.

“Behaviour of this type has no place at Emirates Stadium and after analysing CCTV footage, which showed him leaving the stadium after throwing the bottle, we have identified an image of the suspect. We are liaising with the Metropolitan Police and investigations continue in order to apprehend the culprit.

Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Show all 22 1 /22 Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Petr Cech Got forward well at times but his final ball was lacking in quality. The Arsenal goalkeeper couldn’t do a lot about Spurs’ goals but looks unlikely to displace Bernd Leno as first-choice goalkeeper anytime soon. Getty Images Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Ainsley Maitland-Niles - 6 out of 10 Back in a more familiar role tonight but he didn’t have the best of matches. Action Images via Reuters Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Sokratis Papastathopoulos - 5 out of 10 An average showing from Arsenal’s centre-back’s. AFP/Getty Images Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Granit Xhaka - 5 out of 10 Granit Xhaka is not a central defender. Booked late on after losing his cool with the linesman Action Images via Reuters Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Nacho Monreal - 6 out of 10 Got forward well at times but his final ball was lacking in quality. AFP/Getty Images Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Matteo Guendouzi - 7 out of 10 Didn’t do too much wrong. Was one of Arsenal’s better performers in the first half. Action Images via Reuters Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Lucas Torreira - 6 out of 10 One of Arsenal’s better performers but still not his best night. AP Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Henrikh Mkhitaryan - 5 out of 10 Missed a golden opportunity to put the Gunners in front in the first half. Getty Images Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Aaron Ramsey - 5 out of 10 The Arsenal fans were not happy with him when he failed to capitalise on some shaky goalkeeping from Paulo Gazzaniga. Action Images via Reuters Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Alex Iwobi - 7 out of 10 Was Arsenal’s best player in the first half. Was surprisingly substituted early in the second period. Action Images via Reuters Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Pierre-Emerick Aubameyang - 5 out of 10 Aubameyang had a very quiet night and was hardly involved in any of Arsenal’s attacking play in the first half. Action Images via Reuters Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Paulo Gazzaniga - 8 out of 10 Apart from a blocked clearance in the first half, Gazzaniga had a very good game and made some crucial saves in the first half. Action Images via Reuters Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Kieran Trippier - 7 out of 10 Recovered from an early knock and was a threat with his crosses into the Arsenal box. Action Images via Reuters Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Toby Alderweireld - 7 out of 10 Led the backline well. Arsenal struggled to break through Spurs’ defence all night. Getty Images Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Ben Davies - 7 out of 10 A good performance in a different position. Getty Images Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Danny Rose - 7 out of 10 Was good up against Maitland-Niles and Mkhitaryan in the first half. Action Images via Reuters Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Moussa Sissoko - 6 out of 10 Missed a huge chance to double Spurs’ lead in the first half but had another decent game in midfield. Action Images via Reuters Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Lucas Moura - 7 out of 10 Came off for Kane in the second half but troubled the Arsenal defenders when he was on the pitch. AP Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Dele Alli - 9 out of 10 Man of the match. His pass for Son’s goal was sublime, his finish for the second goal was even better. Top class. AFP/Getty Images Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Harry Winks - 7 out of 10 Calm and composed in the middle. Made things tick for Spurs. Getty Images Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Christian Eriksen - 7 out of 10 Always a threat with his set-pieces. Didn’t quite manage a goal but a class act. Action Images via Reuters Player Ratings: Arsenal vs Tottenham Carabao Cup quarter-final Son Heung-min - 8 out of 10 Son’s finishing off either foot is always excellent. Brilliant goal and led the line very well. Action Images via Reuters

“We are not responsible for the actions of one individual, but send our apologies to Dele Alli and everyone at Tottenham Hotspur for this incident.

“We do not tolerate any anti-social, discriminatory or violent behaviour at Arsenal Football Club. Anyone identified will receive a lengthy club ban and their details will be passed to the police to commence legal proceedings.”

Earlier, the Metropolitan Police confirmed they were working with the club to identify the suspect.

“The Met is working with Arsenal Football Club to identify the person responsible for an incident where a bottle was thrown onto the pitch during the Arsenal vs Tottenham match on Wednesday, 19 December,” they said in a statement.

“There has been no arrest in relation to this specific incident.

“Seven people were arrested as part of the policing operation for this match for a variety of offences including possession of drugs, public order and assault on police.”

Dele Alli was struck by a bottle thrown from the crowd (Rex Features)

A Spurs fan was arrested for throwing a banana skin at Pierre Emerick-Aubameyang when the two teams met in the Premier League at the start of the month.