By now wary from the experience with Vendia, the U-boat sent a boarding party to the Swedish ship, but was obliged to dive by the arrival of . U-3 fired a torpedo at the British submarine, which missed; indeed they were not aware they had been targeted.
The U-boat, having learned from its encounter with Vendia, dispatched a boarding party to the Swedish ship. However, it had to submerge upon the arrival of . U-3 fired a torpedo at the British submarine, which missed; they did not realize they were being targeted.