Sweden gets two new sightings, as hunt for undersea intruder goes on

Swedish Navy fast-attack crafts are seen in the Stockholm Archipelago October 19 2014, searching for what the military says is a foreign threat in the waters. REUTERS/Marko Savala/TT News Agency

STOCKHOLM (Reuters) - Sweden's military is working on two new observations that could be evidence of suspected "foreign underwater activity" near the country's capital, a senior naval officer said on Tuesday.

Swedish forces have been scouring the sea off Stockholm since Friday, after what the military called three credible reports of activity by foreign submarines or divers using an underwater vehicle.