There are frequent scenes of violence involving the zombie-like creatures in the film attacking humans and/or being killed by humans with some details and bloodletting visible.
One of the stronger scenes is a sequence at the beginning of the film depicting people in an airport transforming into zombies and attacking one another viciously.
Some of the other violence depicted in the film include a woman getting punched in the face repeatedly; a woman hitting her forehead repeatedly against the wall until a bloody patch is seen on the wall; a man being stabbed in the stomach; the sight of a man lying in a pool of blood with a gash on the back of his head; etc.
In addition to the airport scene, there is a scene depicting a young man being attacked and killed by a zombie, where the ax can be seen lodged in his chest.
In another scene, a dead man is seen with a bayonet sticking out of his chest.
The violent scenes in the film occur fairly frequently, and are accompanied by some details of injuries and bloodletting.