Four men have been charged with conspiracy to commit robbery and possession of a Section 5 firearm following their arrest on Thursday night.
Andrew Pickerill, aged 32, from Heath Avenue, Newcastle; John Anderson, aged 38, from Dairyfields Way, Sneyd Green, Stoke-on-Trent; Gareth Fitzgerald, aged 32, Edmonton Grove, Stoke-on-Trent and Andrew Edwards, aged 35, Whitchurch Grove, Newcastle, will appear before magistrates in Newcastle on Saturday morning.
Edwards has also been charged with causing damage to a police cell.
All four were arrested by police on Thursday night after their vehicle was stopped in the Porthill area.
An investigation into the incident is ongoing.