Armed police and members of the Armed Offenders Squad have surrounded a property in Taradale on Friday as part of a pre-planned search warrant.
A police communications van and four police cars were seen stationed at the end of Howard Rd while police patrolled the area with guns and dogs.
A witness who lives nearby said they had heard strange noises “like an engine revving” over the past couple of nights around the property.
The witness said police had been active in the area since 9am, but they were unsure if the presence was connected to the same incident.
Another witness said they were informed when trying to get home just after midday that there were reports of a person with a firearm.