Multiple Police units are in attendance at the scene surrounding a property backing onto Cross Street.
2 armed officers have smashed down a rear garden gate and 2 persons – a male and female – have run to safety.
UPDATE @ 11:45 – 1 male – thought to be in his late teens or early 20s – has been
arrested detained and taken into custody this morning. It comes after Armed officers stormed the residential property at the centre of the alert at just before 10:45.
It remains unclear as to what sparked the Armed response at just before 10:30.
Police have now stood down from the incident.
UPDATE @ 12:10 – Hampshire Constabulary have confirmed that officers were deployed at 10:13 following concerns for the welfare of a man.
The unidentified individual has been detained under the Mental Health Act.