In 1940, Otra was stationed in her home port of Horten in Norway. On April 9 the German invasion began. As reports of intruding warships started coming in
Otra was sent out to investigate, and at 0410hrs report that the intruders were Germans. The invasion flotilla blocked
Otra’s return to Horten.
[5]
After capture
Otra was renamed
Togo and put in service as a
Vorpostenboot
2x 76mm guns, 2x 20mm AA guns, 2x MG, mines and minelaying equipment. Top speed 15 knots