Police say they need more people to come forward with information after four vehicles including an ice cream van were set on fire.
The vehicles were all destroyed in the fires which happened on four separate nights in the past week in Annan.
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Carlisle have secured their Football League status by beating Plymouth Argyle 2-0 at Brunton Park.
Kerrie brings you Saturday night's forecast
Carlisle are preparing for game that could see them safe from relegation. They welcome Plymouth Argyle to Brunton Park for a 3pm kick-off.