Merseyside police are appealing for information after a man on an electric bike is believed to have discharged a firearm at two other males in the Liverpool district of Kirkdale.
A report was received at 4.40pm on Sunday afternoon that a gun had been fired at the junction of Stanley Road and Primrose Street.
No injuries were reported and Merseyside police are currently trying to establish the circumstances of this incident and find those responsible.
Road closures were in place on Stanley Road during the evening and motorists were advised to avoid the area.
Officers will be carrying out house-to-house, CCTV and forensic enquiries to help identify the offenders and also provide reassurance to residents.
Chief Inspector Hamish Rawcliffe said: "The investigation is in the very early stages as we look to establish the circumstances of what happened.
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"While no injuries have been reported, discharging a firearm is extremely reckless and dangerous. I would like to reassure the local community that we are working to find those responsible and bring them to justice.
"We have a zero-tolerance approach to any person involved in the use of, possession of, and storage of firearms, and we will relentlessly pursue anyone involved in this type of awful criminality.
"If you have any information about this incident, please come forward. If you live in the area, I urge you to check your CCTV, smart doorbell footage or dashcam for anything that will help with the investigation.
"I urge those people to come forward, either directly to the police, or via Crimestoppers."
Anyone with any CCTV, dashcam or doorbell footage or information about this incident, should get in contact with the police through their social media desk on Twitter @MerseyPolice or Facebook 'Merseyside Police Contact Centre' quoting incident reference 23000210908.