The disgusting missiles were thrown during the Danish Superliga game on Monday, with an investigation now set to be launched in the coming weeks
Brondby are to investigate after dead rats were hurled at Copenhagen players during a Danish Superliga clash between the sides on Monday.
Hosts Brondby were trailing 1-0 in the 85th minute of the match when the rodents rained down on Copenhagen full-back Ludwig Augustinsson as he prepared to take a corner.
Copenhagen won the match to move 13 points clear of their fierce rivals at the top of the championship group.
"We are obviously annoyed that we had to leave the field without points, but it is equally unfortunate that there are some visitors for today's match who could not figure out how to behave properly," said sporting director Troels Bech in a statement addressing the throwing of "missiles".