A British grandfather who helped subdue a gunman armed with an AK-47 on a train from Amsterdam to Paris is to be presented with France’s top honour for bravery.

The man who boarded a high-speed Amsterdam-to-Paris train with a Kalashnikov rifle before being tackled by passengers had ties to radical Islam and may have travelled to Syria.

The US airman who was stabbed in the neck as he disarmed a terrorist with a Kalashnikov on a French passenger train has left hospital.