Dwarf cancels task: Interrupted
From Dwarf Fortress Wiki
This means that a civilian dwarf had line-of-sight to a non-friendly creature. It does not matter whether the creature can actually reach the dwarf. The cause can be anything from a horse or marmot (basically safe to ignore), a kobold thief (often harmless, will usually flee), potentially dangerous animals like cougars (dispatch military or hunter), to a goblin ambusher (Oh-oh, bad news) or carp (see below).
This message can foretell your doom in the form "Dwarf cancels Fish: Interrupted by carp." It would be a good idea to find the dwarf in question and investigate, before all of your dwarves start dying because one dwarf died, then another died trying to get his inventory, then another died...
