A police cordon and a forensics tent are currently in place around a house in the centre of Northampton.
Eyewitnesses say they saw police breaking into a home in Victoria Gardens using a battering ram at about 1pm.
Currently, the lane closest to the houses is closed while a police cordon is in place, which is causing traffic delays in the area.
A forensics tent is positioned outside the front door of the home, while a number of police officers remain at the scene.
Updates to follow.