While detectives continue to question the 23-year-old over yesterday's incidents, Humberside Police are aware of a second suspect and enquiries are on-going to identify and arrest them. They added that the suspect is not believed to pose a danger to the public.
The thefts of four cars occurred between 3.20am and 7.30am on Friday with two men believed to be carrying imitation firearms taking the vehicles in Hull, Hessle and Hedon, as well as attempting to steal further vehicles.
A team of detectives are continuing to investigate the incidents and over the coming days will speaking to all the victims and a the large number of witnesses who have come forward.
Supt Dave Hall said: “This was a very unusual incident for the area as aggravated car thefts are rare, especially on the scale experienced yesterday. We appreciate that that those involved will have been left deeply affected and we will be working to support them and ensure their well-being. We will also continue to have a high visibility policing presence in the communities affected, offering support and reassurance.
“Detectives are working to piece together the incident with victims, witnesses and the man in custody. And the message to the public and those involved is clear – we are working hard to ensure everyone involved is identified, arrested and brought to justice.
“I would again like to commend the courage and bravery of those who assisted in arresting the 23-year-old man in Hedon. They went above and beyond what was expected of them and I would expect they’ll get formal recognition once the investigation has concluded. I would also like to thank the wider public for their support with calls that are assisting our enquiries. It makes a huge difference and shows the public are behind us in bringing offenders to justice.