TWO more explosive devices have been found in Ipswich after police dismantled a homemade “glass jar” bomb at a shopping centre carpark.

A man and woman were charged on Easter Monday after the Queensland bomb squad dismantled a suspicious device they found in a car and which was believed to be capable of causing serious harm.

An emergency situation was declared around Redbank Plaza, in Brisbane, about 9.15am after the device was found by police.

District duty officer, Senior Sergeant Gareth James confirmed police found a “fairly large glass jar” containing an explosive liquid and other components, according to The Queensland Times. An exclusion zone was put in place

The car, which had numberplates that did not match the vehicle, was also allegedly obtained via a “fraudulent transaction” a few days ago, which means it could have been stolen or obtained through fraud.

The licence plates and suspicious activity around the car raised a red flag with Ipswich’s Safe City CCTV camera network, which noticed the vehicle and its occupants about 7.15am.

Snr Sergeant James said police attended the scene soon after and officers found a cardboard box on the floor between the legs of the passenger. It contained items that were “very suspicious”.

A man and a woman were arrested and later charged in relation to the incident.

Officers also searched the man’s property on Monday afternoon and found two more explosive devices, which were also dismantled by specialist police. Police said they also found a firearm and dangerous drugs.

Police released a statement saying the 37-year-old Camira man was due to appear in Ipswich Magistrates Court on Tuesday charged with two counts of manufacture explosive without authority, and one count each of possessing dangerous goods, possessing tainted property, stealing, receiving tainted property, vehicles used on roads must be registered, drive uninsured vehicle and offences involving registration certificates.

He is expected to face additional charges when he appears in court.

A 31-year-old Capalaba woman will also appear, charged with possessing dangerous goods, possessing tainted property, fraud, forgery, uttering, stealing and receiving tainted property.

The emergency situation at Redbank was revoked at 11.35am after the device was rendered safe and specialist police dismantled it.

When asked earlier what behaviour drew attention to the car and its occupants, Snr Sergeant James said: “I believe it was just the amount of time spent in the car, not getting out of it”.

He said the car had also parked against the rear wall of the shopping centre, in spaces that not many people use.

The motives of the two people, “at this stage were totally unknown and subsequent to further investigations”.

Exclusion zone in place after an explosive device was reportedly found inside a car parked at a shopping centre south west of Brisbane. #RedBank #7News https://t.co/PLGtNpi5Xi — 7 News Brisbane (@7NewsBrisbane) April 1, 2018

.@QldPolice bomb squad arrive at #Redbank Plaza. Cops tell me the suspicious device is located in a cardboard box inside the parked car. @qld_times pic.twitter.com/OyfKSOcj7m — Hayden Johnson (@haydenjohnson94) April 2, 2018

Snr Sergeant James said at least one of the occupants of the car was known to police.

QLD’s bomb squad, the Explosive Ordnance Response Team, was called to Redbank Plaza carpark after the items were found.

An emergency situation was declared under the Public Safety Preservation Act (PSPA) and roads around the shopping centre in an eastern suburb of Ipswich were closed.

Footage of the scene showed a member of the bomb squad approaching the silver Nissan sedan.

An exclusion zone was set up from Collingwood Drive, Law St South, Ipswich Motorway Service Rd and Redbank Plaza Service Rd.

The Safe City CCTV network is run by Ipswich City Council.

A spokeswoman confirmed to news.com.au that Redbank Plaza shopping centre was still open but could not provide further details.