Figures obtained by ITV Anglia show hundreds of gas appliances have been worked on by unregistered engineers here in the East of England.
Nearly 250 jobs were carried out by unqualified engineers over the past two and a half years.
Nearly one in five of those were so dangerous the appliances had to be disconnected immediately.
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Police investigating the murder of a man in Welwyn Garden City say he was stabbed following a "serious altercation" involving four men.
Police have cordoned off an area of Norwich's clubland following a report of a sexual assault.
Trains between Norwich and London were cancelled on Sunday morning as a result of overrunning engineering works.