A 15-year-old boy was arrested on suspicion of gun possession, police have confirmed.
Officers searched a home in Whiston this afternoon in connection with the investigation.
Pictures showed units from the specialist MATRIX squad in attendance at the scene.
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Police attended a property on Gresford Close, off Copperwood Drive, just after noon on Wednesday.
A spokeswoman for Merseyside Police confirmed a boy, aged 15, was arrested on suspicion of possession of a Section One Firearm and said: “He has been taken into custody and will be questioned by police.
“Officers remain in the Gresford Close area while further enquiries are carried out.”
*Anyone with information on gun crime is asked to contact Merseyside Police via Twitter (@MerPolCC), Facebook (Merseyside Police Contact Centre) or by calling 101.
Crimestoppers can be contacted, anonymously, on 0800 555 111
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