During Ostersunds' match against Jonkoping Sodra in Sweden's top flight on Monday, a masked pitch invader attacked Ostersunds goalkeeper Aly Keita.
The match was immediately stopped by the referee–it was eventually abandoned, according to reports–and players rushed to the defense of the goalkeeper before security could get there.
The attacker managed to get his hands around the neck of Keita, who required medical attention afterward according to a Swedish outlet.
The game was 1-1 at the time of the incident. The motive is unclear at this time.