Post Mortems were done today and revealed nothing. This conclusion was the direct result in the MoD being 'possibly' to blame.
We all know FOST and other exercises take place off the coast of Falmouth and all up the Devon/Cornwall south coastline. It is plausable Sonar or (as said on local TV news) underwater detonations scared the dolphins senseless.
Will be interesting to see the MoD statement tomorrow or sometime this week.
Certainly a sad sight to see...