A body has been removed from the Whangaehu River in Mangamahu where a vehicle was found partially submerged.
A police spokesman confirmed a body was recovered from the river on Friday.
The vehicle, which was spotted in the river near the Kowhai St and Mangamahu Rd intersection, was reported to police on Thursday last week.
Police attended the scene late on Thursday night but were unable to locate anyone in the vehicle or nearby area.
The vehicle was removed from the river on Friday.
Emergency services were called to an incident on Anzac Parade, near Georgetti Rd, on Saturday evening following a crash.
One person sustained serious injuries as a result and died a few hours later.
Police have arrested one person in relation to the fatal crash, but are not in a position to confirm charges.
Inquiries into the circumstances of the incident are continuing.
Several hours later Whanganui Fire and Emergency was alerted to an early morning blaze at a poultry farm on Papaiti Rd around 12.45am on Sunday.
A Fire and Emergency spokesman said the fire was well-involved and that walls of the building were collapsing when crews arrived.
The spokesman said the shed was approximately 150m by 20m, and housed around 1000 chickens.
At the scene crews were able to stop the fire spreading to a nearby building, but the spokesman said "there's nothing left" of the chicken shed.
Seven fire appliances from Whanganui, Palmerston North, Ratana, Marton and Waverley attended the scene alongside three water tankers and a rural Fire and Emergency unit.
Water from a nearby swimming pool was also used to put out the blaze, and crews at the scene were damping down hotspots by 2.30am.
A specialist Fire and Emergency investigator is working to determine the cause of the fire.