Klingon freighter

Star Trek: Deep Space Nine

A vessel, otherwise unspecified, that was two light-years from the Demilitarized Zone in 2370 when it detected the warp signature of the Maquis ship with the kidnapped Dukat aboard.
— Another one departed into the wormhole after the preliminary Paqu-Novat talks on Deep Space Nine in 2369, giving Jake and Nog a chance to give Varis her first look at the anomaly.
— Bo'Rak's feighter returning to the Klingon Empire suffered major computer damage and put in for repairs at Deep Space Nine for two days while Romulans visited in 2371.