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Submarine hunt sends Cold War chill across Baltic

Swedish  Navy minesweeper HMS Kullen, foreground,   patrols  in the Stockholm Archipelago, Sweden,  Sunday Oct. 19 2014.  A Swedish military search for evidence of suspected undersea activity in its waters has entered its third day amid reports of a suspected Russian intrusion.  (AP Photo / TT News Agency / Marko Saavala)   SWEDEN OUT
Swedish Navy minesweeper HMS Kullen, foreground, patrols in the Stockholm Archipelago, Sweden, Sunday Oct. 19 2014. A Swedish military search for evidence of suspected undersea activity in its waters has entered its third day amid reports of a suspected Russian intrusion. (AP Photo / TT News Agency / Marko Saavala) SWEDEN OUT Swedish Navy minesweeper HMS Kullen, foreground, patrols in the Stockholm Archipelago, Sweden, Sunday Oct. 19 2014. A Swedish military search for evidence of suspected undersea activity in its waters has entered its third day amid reports of a suspected Russian intrusion. (AP Photo / TT News Agency / Marko Saavala) SWEDEN OUT

STOCKHOLM (AP) – Sweden’s biggest submarine hunt since the dying days of the Soviet Union has put countries around the Baltic Sea on edge, with Latvia’s foreign minister calling the incident a potential “game changer” in the region.

In a scene reminiscent of the Cold War, Swedish naval ships, helicopters and ground troops combed the Stockholm archipelago for a fourth day Monday for signs of a foreign submarine or smaller underwater craft that officials suspect entered Swedish waters illegally.

While Sweden hasn’t said what foreign country they suspect – and Moscow denies involvement – the submarine search sent a chill through the Baltic Sea region, where Russian forces have been accused of a series of border violations on land, sea and air in recent months.