Patrols have been stepped up in Moor Nook after a man fired a gun towards a group of people last night.
Officers were called to the junction of Pope Lane and Grizedale Crescent shortly after 5pm to reports of the sound of shots being fired.
An investigation was launched and CSI were on the scene.
Police now believe a man got out of a silver Ford Mondeo car and discharged a firearm towards a group of people.
No-one was injured during the incident, which is being treated as a targeted attack.
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Det Ch Insp Richard McCutcheon, of Preston CID, said: “It is incredibly lucky nobody was hurt during this incident and I would encourage anyone who can assist our enquiries to come forward.
“We are particularly keen to trace any witnesses, or anyone with dashboard mounted camera footage which may have been recording in the area around the time of the offence.
“At this time we believe this was a targeted attack and there is no wider threat to the public. However we know this will have been concerning for residents and we have stepped up patrols in the area.”
Anybody with information should call 101 quoting log reference 1206 of August 26.
Alternatively independent charity Crimestoppers can be reached anonymously on 0800 555 111 or online at crimestoppers-uk.org