A street in a market town has seen two arson attacks carried out just five days apart.
Both attacks happened in Park Close, Wymondham, this week in the early hours of the morning, leaving locals "shocked" and "worried".
The first car, a dark grey Volkswagen, was set alight at 2.15am on June 14.
Firefighters were able to swiftly extinguish the blaze and nobody was injured.
A spokeswoman for Norfolk Constabulary said: "All lines of enquiry have been exhausted and the case has been closed.
"Of course, we would always review any new information provided to us."
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The second car was set alight at 2.45am on Wednesday. Again, the fire was extinguished and nobody was injured.
But locals are now fearful of more attacks.
One man, who asked not to be named, said: "Obviously we are shocked and worried about the possibility of further arson attacks.
"The police have advised people to move their cars to a safer place if they're worried but that's not always feasible.
"They have been asking for CCTV footage to see if they can catch the arsonist."
Police confirmed today that the second incident is being treated as arson and enquiries are ongoing.
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