Five men have been arrested following an incident involving firearms on a Caernarfon estate.
Detectives were called to the Lon Y Bryn area at just before 9.40pm on Sunday night.
Two men are being held on suspicion of possessing a firearm in a public place and three men were also arrested on suspicion of possessing an offensive weapon.
North Wales Police says patrols have been stepped up in the area while an investigation into the incident continues.
Anyone with information should contact North Wales Police on 101, quoting reference no. Q140111, or by using the live webchat facility on the force's website.
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