A man in his 30s was arrested on suspicion of possessing weapons after he was stopped near Felixstowe seafront.
Suffolk police had cause to stop the vehicle on Undercliff Road West, close to the Spa Pavillion, just after 11am on Friday, January 8.
After officers carried out further enquiries, a man was arrested on suspicion of possession of weapons and drugs offences.
A spokesman for Suffolk police said: "He has been taken to Martlesham police investigation centre for questioning."
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here