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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Kerrie brings you Saturday night's weather forecast for Cumbria and the South of Scotland
Gusty winds with sunshine and showers. A cooler night ahead
A look ahead at the weekend forecast for the Border region.