An emergency declared today under the Public Safety and Preservation Act in Kallangur, has since been revoked.
The PSPA was declared shortly after midday after the execution of a search warrant at a residence uncovered what was believed to be explosive material.
The scene has been rendered safe, following a controlled detonation and the material will now be scientifically tested.
A section of Coppin Street West and Gardner Street West were closed bordering the intersections of Archer and Cliff streets which reopened at 4.30pm.
Investigations are continuing with a man aged in his 40s arrested by police after drugs were allegedly located at the residence.
If you have information for police, contact Policelink on 131 444 or provide information using the online form 24hrs per day.
You can report information about crime anonymously to Crime Stoppers, a registered charity and community volunteer organisation, by calling 1800 333 000 or via crimestoppersqld.com.au 24hrs per day.
