Emergency services were called to Harrogate last night after residents reported a "loud bang" - but were unsure of its cause.
Police received reports of a loud bang at an address on Knaresborough Road at about 8.45pm.
However after officers attended the scene, alongside Fire Service colleagues, they examined the area and found no sign of a fire or explosion.
There were no reports of any injuries.
A police spokesperson said:
"Enquiries are ongoing, and anyone with information about the incident who hasn't already spoken to the police is asked to call 101, quoting reference 12240143140.
"We're particularly keen to hear from anyone who may have CCTV or dashcam footage in the area - this can be submitted to us online.
"You can also call Crimestoppers anonymously on 0800 555 111."

Harrogate-based Sporting Influence Foundation to tackle 24 climbs in 24 hours
Giant vegetables take centre stage at Harrogate Autumn Flower Show
Alpamare waterpark to be sold to 'protect its future' with private investment
Roadworks causing growing disruption in Harrogate and Knaresborough, officials admit
Yorkshire artist brings Harrogate's Old Market Hall back to life
Martin House hosts first children's palliative care conference
Judge appointed to lead inquiry into North Yorkshire mental health trust
Harrogate group raise more than £40,000 with cycle to Bordeaux
Scotton pub wins Tripadvisor award for seventh year running
Almost 2,000 people sign Knaresborough landslip petition
Police appeal after Range Rover damaged in Knaresborough
St Aidan's teacher recognised at national Teacher of the Year Awards
Bramham Park to host its first Christmas market
Harvest gown unveiled for flower show's 50th anniversary
Ripon's Mario's Restaurant named among Tripadvisor's top 10%
Harrogate Rugby Club reveals plans for clubhouse expansion and padel courts
Police appeal after Lister House minibus vandalised in Ripon
Council urged to "show me the money" and provide evidence of home-to-school policy change savings
Kate Mosse and Prue Leith among stars of Harrogate Literature Festival
Ripon among UK's top cities for missing parcels


