A prosecutors’ investigation team in Germany has revealed that human error caused the head-on train crash that killed 11 people last week.

On 9 February, two Stadler Flirt trains operated by Transdev subsidiary Meridian collided in the southern Bavarian town of Bad Aibling.

Both trains were travelling on the same single track in opposite directions.

The train crash also left 24 people severely injured and 61 lightly injured, according to Deutsche Welle.

"If he had complied with the rules, there would have been no collision."

Media sources reported the prosecutors as saying that a local train controller has been charged with involuntary manslaughter for allegedly activating a special signal that shouldn’t have been on the railway track.

Lead prosecutor Wolfgang Gliese was quoted by media sources as saying: "If he had complied with the rules, there would have been no collision."

The crash on the curved site of the railway track has occurred as the drivers might not have been able to see the train coming from the opposite direction, BBC reported.

German Transport Minister Alexander Dobrindt was quoted by CNN as saying that the trains were estimated to have been travelling about 100km/h (62mph) at the moment of impact.

The investigation eliminated technical defects as the reason behind the crash and focused on why the trains were simultaneously travelling on the same track.

An investigation against the train dispatcher has been opened.