Two people were arrested and subsequently released under investigation, after reports a man was seen carrying a gun in Cowes.
Hampshire Constabulary detained a 36-year-old man from Gurnard, on suspicion of being in possession of a firearm without a certificate.
As part of their enquiries, police also arrested a 36-year-old woman from Newport, on suspicion of conspiring to possess a firearm.
Both have been released from custody, but remain under investigation.
Officers were called to Terminus Road, Cowes in the early hours of Sunday morning (October 10).
No-one was hurt, said police.
If you saw what happened, or have information for the police, call 101, quoting 44210406721.
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