The 15-year-old was arrested in the early hours of this morning (Tuesday) in connection with a number of incidents.
Police are now investigating instances of theft, fire-raising and anti-social behaviour.
A Police Scotland spokesperson said: "A 15-year-old male has been arrested in connection with a number of incidents that took place within Bonnyrigg during the early hours of Tuesday 9th April.
"We are investigating instances of theft, vandalism, fire-raising and anti-social behaviour and are following a positive line of enquiry in relation to another suspect.
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