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Stun grenade found by police in north Qld

A police stun grenade missing in a suburban street has been found four days after a fatal siege in north Queensland.

Police realised they had lost the device after an audit of specialist gear used in a nearly 10-hour siege that ended with the discovery of an armed man's body in the Townsville suburb of Kirwan on Monday.

Officers repeatedly searched the street for the grenade but were forced to admit it was lost and asked the public to help.

"The device is not a lethal device but has the capacity to cause injury to a person in close proximity if the device is handled incorrectly," they said in a statement on Thursday.

"Members of the public who have information about the location of this device may not know the significance of such a piece of equipment and are urged not to tamper with it and call police immediately."

A day after the public plea, police found the "distraction device" still at the scene.

Police will review how the device was lost during the police operation, which started after a man fired several shots at nearby houses, a car and police vehicles on Sunday night.

The shots left bullet holes in windscreens and panels of five vehicles that investigators believe officers were in at the time.

Police have not detailed the weapon used and have confirmed officers did not fire back.

The emergency order was revoked at 6.45am after police entered the home and found a 50-year-old man dead.

No one else was injured.