One man died and a second was seriously injured after a road accident in The Fens.
An off-road motorbike ridden by the pair collided with a telegraph pole on Waterlees Road in Walsoken, between First March Road and Second Marsh Road, at 2.50pm on Tuesday August 16.
One man in his twenties suffered fatal injuries and died at the scene.
A second man, also in his twenties, was flown by air ambulance to Addenbrookes Hospital in Cambridge with serious injuries.
Officers would like to hear from any witnesses, or anyone who may have seen the manner of driving of the vehicle prior to the collision.
Anyone with any information is asked to contact 101 or email SCIU@norfolk.pnn.police.uk  quoting CAD 274 of Tuesday 16 August.