Unable to ascertain shape or size, at night this is impossible as all objects were showing an upward facing yellow/white light. However a procession of these "lights" were heading north east, at a height of approx 2000'. They were roughly in trail, and numbered around 15 - 20. The position on the map is of my house, these objects were seen in trail and looked to be following the A143 north eastbound.

They looked to be doing a helicopter type speed (around 100 kts), and made no discernable noise whatsoever. My first thought was an exercise from Wattisham airfield (approx 30 miles SW) but the Apaches make a discernable noise - I could hear no noise whatsoever from these contacts.

In this part of Norfolk/Suffolk there is no readily available "authority" with which to check if this was a training exercise or not.