Several new leads have been generated by the publication of CCTV images of a man sought by detectives investigating two bomb hoaxes in a city centre.
Parts of Canterbury in Kent were left paralysed last Friday night after a suspicious package was found near a railway line in Old Dover Road.
A fire also involving a hoax device was started in a baby changing room on the second floor of a Marks and Spencer store.
Around 100 officers were deployed, along with colleagues from British Transport Police (BTP) and Army bomb disposal experts.
Yesterday Kent Police issued CCTV of a man aged 35 to 40, wearing a dark baseball cap and possibly cycling clothes. He also had a blue and black rucksack.
Speaking about the response, Detective Chief Inspector Tom Richards said: ``We have had a number of useful calls from members of the public and we are following up every lead.''
Tomorrow officers will revisit the scenes of the hoaxes to show people the pictures.
Mr Richards said: ``By being at the scene exactly a week later we hope to talk to people who were out and about in Canterbury at the time of the hoax bombs and may have seen the offender at work.''
Whether the man was working alone or with others or whether he travelled into Canterbury by bicycle, foot or by car were all important lines of inquiry, Mr Richards added.
Anyone with information is asked to call Kent Police on 01622 690690 or Crimestoppers anonymously on 0800 555111.
Listen to our interview with ACC Adams