Manchester City have labelled a reported attack on the Liverpool team bus as 'unacceptable' in a statement released on their club website.
Pep Guardiola's side cruised to a 4-1 win over their rivals thanks to goals from Julian Alvarez, Kevin De Bruyne, Jack Grealish and Ilkay Gundogan.
However, the victory was marred by the news that the Liverpool team bus had 'sustained damage' upon leaving the Etihad Stadium on Saturday afternoon.
Greater Manchester Police have also launched an investigation into the matter after reports of criminal damage.
A statement on the City website said: 'Manchester City FC has been made aware that Liverpool FC’s coach sustained damage on its return journey following today’s game.