UPDATE: Armed police called to an incident in Farlington
The incident happened in Broad Gardens, near Havant Road.
It is believed that more than half-a-dozen police units, including armed officers and police dogs and ambulances, were at the scene.
The small industrial estate behind Pearl of the Orient was blocked off by police cars.
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Hide AdThe area was sealed-off by uniformed officers from approximately 7pm.
Three ambulances were also on scene. There have been no reports of casualties.
A spokesperson for Hampshire Police said: ‘Police were in attendance at Broad Gardens, Farlington during the evening of Saturday, September 3 in connection with a report of concerns for the welfare of a man.
‘Officers were called to the address just before 7pm.
‘A 45-year-old man from Portsmouth was arrested just after 12.30am on Sunday, September 4.
‘Part of Lower Farlington Road was closed while police dealt with the incident.’