After the stunt we've all known from last week, when several military planes were seen flying through international waters going dangerously close to the national air spaces of several European countries, now the incident occurs also on water.
Taken from a Portuguese newspaper's site:
"An hydrographic russian ship was detected this tuesday inside Portugal's EEZ (Exclusive Economic Zone), in international waters, announced today the Portuguese Minister of Defense, José Pedro Aguiar-Branco.
The ship was detected, identified and escorted outside the Portuguese EEZ last night, only reaching the outside of said zone this morning, said the Minister."
So, an hydrographic ship doesn't necessarily mean it is a military vessel, yet in contrast with the International Air Space, a country's EEZ is for all effects belonging to that country, even though considered "international waters". In this case the Portuguese Navy has jurisdition over it and the State of Portugal controls it and other countries' vessels can only enter that space under Portugal's permission, no matter the intention.
What can this be called then? A mere coincidence? A more dissimulated russian stunt to check European's means, this time by sea? A lost ship?
(added the source from the article, in portuguese: http://www.jn.pt/PaginaInicial/Segur...ent_id=4221246)