Soon after Chelsea's statement, Qarabag responded with their own. They vowed to investigate the matter and said this incident does not reflect the club's values.
They added: "We are sorry about this incident. It does not reflect the values of our club. We will investigate it thoroughly."
Now, European football's governing body, UEFA, has slapped them with a £4,379 fine, with Qarabag's youth team having to play a match behind closed doors following "racist and/or discriminatory behaviour of its supporters" - though that punishment is suspended for a year.
A statement from UEFA reads: "The CEDB has decided: To fine Qarabağ FK Youth €5,000 and to order Qarabağ FK Youth to play its next one (1) UEFA competition match as host club behind closed doors, for the racist and/or discriminatory behaviour of its supporters. Said match behind closed doors is suspended during a probationary period of one (1) year, starting from the date of the present decision."