The bomb squad carried out two controlled explosions in Spalding within the space of a week.
The most recent operation from the explosive ordnance disposal (EOD) unit took place on
Friday when a training round was found in a property in Fen End Lane.
At 1.35pm a controlled detonation was carried out.
The first controlled detonation of the week took place at Spalding Grammar School, when EOD responded to a potentially explosive chemical found in a lab.