A MILITARY drone crash in Wales was caused by computer failure, an official investigation has found.

Inadequate training also contributed to the accident near the Welsh coastal village of Aberporth, which has seen five drone crashes in recent years including one near the local primary school.

A new report by the Defence Safety Authority (DSA) examined the fourth crash, in which an unmanned Watchkeeper drone ploughed into Cardigan Bay on March 24, 2017 – just 20 minutes into a training flight.