WARSAW, Poland — A spokesman for Poland’s national railways says 28 people were injured when a passenger train hit a cargo train Wednesday evening. There were no fatalities.

Seven of the passenger train’s 11 carriages and the engine derailed in the collision, which occurred before 10 p.m. in the northern Polish town of Smetowo Graniczne.

Miroslaw Siemieniec, a spokesman for the railway said Thursday that 28 people were hurt but there were no life-threatening injuries. The previous evening officials had spoken of 21 injured.

Prosecutors and railway experts are investigating the cause of the crash.