Police officers were called to reports of a small explosion at Longcauseway, Bolton, at about 10:10pm last night (1 May 2022).
The Army’s Explosive Ordnance Disposal (EOD) attended and made the device safe.
No arrests have been made and no-one was injured.
Enquiries are ongoing with officers in Bolton making an appeal for information.
Detective Inspector Sarah Bell, of GMP’s Bolton CID, said: “The EOD attended and made the device safe but confirmed it was a viable device.
“We are appealing for information, in particular can we ask that members of the public check CCTV and dashcam footage on Longcauseway and Moorhead Close.”
Anyone with information should call police on 0161 856 5830 quoting incident 3194 of 01/05/2022.
Information can also be reported online or by using the LiveChat function at the website. If you can’t report online, call 101 or Crimestoppers anonymously on 0800 555 111.