Police were called at approximately 4.50pm on Monday, 17 April to reports of a man in possession of a firearm inside an address in Howard Road, Surbiton.
Officers, including firearms officers, have attended the address.
A man has been arrested at the scene on suspicion of firearms offences; he remains in custody.
Four firearms were recovered at the scene; these will be tested to establish whether they are live weapons.
No reports of any shots fired or any injuries.
Enquiries into the circumstances continue.
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