In 2370, the Hannibal was being built at the Okana Shipyards in the Bajor system as one of the first building contracts taken since the end of the Cardassian Occupation. Starfleet sent a shipment of antimatter to Bajor, but the shipment was hijacked by terrorists. Commander Sisko, Lt. Dax, and Constable Odo retrieved the antimatter, and the ship was launched on her shakedown cruise soon afterwards. (DS9 novel: Antimatter)