Celtic has advanced to the Scottish Cup semi-finals after defeating Rangers on penalties, but the match was marred by a pitch invasion and violent scenes at Ibrox.
According to reports from the BBC, the ugliness of the 120 minutes was followed by a disgraceful post-match incident, with many Celtic supporters invading the pitch at the Broomloan Road end.
Rangers fans in the Copland Stand reacted, with some threatening to pile on to the pitch, but were shoved back by police and stewards.
Police Response
Police created a cordon on the pitch to separate the fans, and several objects, including a flare, were thrown between the two sets of supporters.
Celtic manager Martin O'Neill stated that one of his staff members was confronted by a Rangers fan, but was wrestled to the ground by stewards and police.
Investigation Underway
The Scottish FA is investigating the incidents, which included a pitch invasion, missile throwing, and reports of a bust-up between players in the tunnel.
Neither club has made an official statement in the immediate aftermath, but they may address the rumors of a tunnel incident and the logic of extending the numbers of away supporters in the future.
Match Summary
Celtic won the match on penalties after the game ended 0-0, with Tomas Cvancara scoring the decisive penalty.
Rangers had dominated possession but were unable to find a breakthrough, with Celtic's defense holding firm throughout the match.
