World football boss Sepp Blatter and UEFA president Michel Platini on Wednesday strongly condemned the violent scenes that forced a Serbia-Albania football international to be abandoned.

Platini called the politically-charged violence in Belgrade "inexcusable" while Blatter said football "should never be used for political messages."

Players from the two sides clashed on Tuesday after a drone carrying a pro-Albanian flag was flown over the Belgrade stadium where the two sides were playing a qualifier for the 2016 European Championships.

Platini "is deeply saddened by the events in Belgrade last night," UEFA spokesman Pedro Pinto said.

"Football is supposed to bring people together and our game should not be mixed with politics of any kind. The scenes in Belgrade last night were inexcusable," the spokesman quoted Platini as saying.

UEFA is expected to formally open an investigation into the events on Wednesday after studying reports from the match referee and coordinator.

Blatter added: "Football should never be used for political messages. I strongly condemn what happened in Belgrade last night."