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A suspicious fire could have had tragic consequences, according to police who have launched an appeal for information.
Detectives are appealing for information about a fire at Cygnet Close, Larkfield, shortly after 11pm on Monday, January 5.
A caravan parked on the driveway of the house was set alight and at the same time a brick was thrown through the window of the house.
Tonbridge and Malling neighbourhood officer, Inspector Justin Watts said: "This fire could have had fatal consequences because until the previous day children from the house had been sleeping in the caravan.
"Our investigation is ongoing but it is important that if anyone has information they contact police or speak to their neighbourhood officer."
Police would like to hear from anyone with information, particularly about vehicles leaving Swallow Road, around 11pm or people seen acting suspiciously around the same time.
A 22-year-old man was arrested by police in the early hours of Tuesday, January 6 in connection with the incident. The man was later released on police bail while inquiries continue.
Anyone with information is asked to contact police on 01732 379217 (if possible quoting reference 255) or Kent Crimestoppers on 0800 555 111. Information can also be emailed to appeals.westkent@kent.pnn.police.uk