Cyber-ship

Cyber Ships were battle-class ships created by the Cybermen and the Cybermen of a parallel world. The first time the Doctor encountered a Cyber ship was on the Nerva Beacon next whilst looking for the Nemesis and then when they came to Stonehenge with other ships such as Dalek saucers, Sontaran flagships, Judoon rockets, Slitheen vessels and the Atraxi. (DW: The Pandorica Opens)

Behind the scenes
In The Pandorica Opens, River Song states that Cyber Ships are among the fleet gathering above Stonehenge. When the fleet is shown, the Cyber Ships are never identified; however, one ship which is shown prominently bears a striking resemblance to the Cyber Ships seen in The Invasion. It hasn't been confirmed that this resemblance was intentional, but it should be noted that a visual effects artist stated in a Doctor Who Magazine interview that fans would be able to notice several familiar ships in the fleet.