THIRTEEN registered firearms have been stolen from a Newnham house in a daylight burglary.
The licensed firearms' owner reported the theft to police about 2pm on Tuesday.
A rear window was damaged during the break-in.
The stolen firearms were long-arms, including rifles and shotguns.
No ammunition was stolen.
The licensed owner had complied with the legal requirements for firearms storage.
Detective Inspector Scott Flude, of Northern Criminal Investigation Branch, urged anyone who saw suspicious people or vehicles in the Newnham-Mayfield area on Tuesday to contact police.
He said the firearm theft was the most that had been stolen in the Launceston area this year in the one burglary.
Police urge anyone with information to call Crime Stoppers on 1800333000 or Launceston detectives on 63363701.
Tasmania Police command has consistently denied that its firearms registry has been breached.
Other thefts since the start of January include six firearms, ammunition and gun equipment stolen at Bothwell and three firearms stolen at Brighton.