SAS unit repeatedly killed Afghan detainees, BBC finds

SAS operatives in Afghanistan repeatedly killed detainees and unarmed men in suspicious circumstances, according to a BBC investigation.

Newly obtained military reports suggest that one unit may have unlawfully killed 54 people in one six-month tour.

The BBC found evidence suggesting the former head of special forces failed to pass on evidence to a murder inquiry.

The Ministry of Defence said British troops "served with courage and professionalism in Afghanistan".