Argentine police have raided navy shipyards as a probe into repair irregularities deepens. One of the two German companies implicated in the sub's repairs, Ferrostaal, has also had its local offices searched.
Argentine police searched through navy headquarters and state-run shipyard offices on Wednesday in a bid to investigate the disappearance of a submarine last month.
A judge ordered the searches to help probe alleged irregularities with repairs on the German-built submarine.
The searches came after the navy appeared to implicate two German companies Ferrostaal and Hawker, for electrical repair problems with the submarine. Argentine authorities on Wednesday also searched the Buenos Offices of Ferrostaal.
Contract irregularities