Authorities in northern Norway released a vessel that was suspected of the latest data cable breach in the Baltic Sea, saying no evidence had been found linking it to the incident.

Norwegian police seized a Russian-crewed ship on suspicion of being involved in causing “serious damage” to a fiber cable in the Baltic Sea between Latvia and Sweden.

Latvia on Sunday said it had sent a warship to investigate the latest apparent act of sabotage in the Baltic, as Sweden reported at least one undersea optic fibre cable linking the two countries had been damaged.