Brain scans of US embassy staff to Cuba may show abnormalities

Diplomats had reported falling ill after what was thought to be 'acoustic attack'

Brain scans of US embassy staff who became ill in mysterious circumstances while serving in Cuba have found potential abnormalities that may be related to their symptoms.

The scans taken from 40 US government workers who suffered strange concussion-like symptoms during their deployment to Havana revealed that particular brain features looked different to those in healthy volunteers.