Police and scenes of crime officers are examining a house where an unexplained device is being investigated by the bomb squad.
Residents of Falloway Close reported hearing air rifles being fired in the garden of the terraced house on Sunday.
Devon & Cornwall police say the device was discovered after officers paid a visit to the property earlier today.
More top news
The newly re-elected Labour leader Jeremy Corbyn has pledged to re-build and increase the party's vote across the West Country.
A campaign is underway in Cornwall to save the post of a popular policeman - with an online petition gaining more than 6,000 signatures.
Mild but unsettled with rain at times