Council leader David Christian says CCTV footage shows a recent spate of vandalism is down to one group of youngsters.
He was speaking out after the public toilets on Loch Promenade were set alight and Shaw's Brow car park damaged in recent weeks.
Mr Christian says Douglas Council will work as closely as possible with officers to make sure those responsible answer for their behaviour.
And he appealed to parents to know where their children are during the evenings.
Former Motor Museum goes on the market
If you ever wanted to own your own motor museum on the TT course, now's your chance!
No Onchan Park plan, say commissioners
There'll be no new overall plan for Onchan Pleasure Park - but individual improvements will go ahead.
Laxey campsite to get campervan improvements
Garff Commissioners are considering expanding campervan facilities at Laxey campsite.
Local authority: don't suffer in silence at Xmas
Commissioners in the south of the Island say you needn't suffer in silence if you're struggling financially this Christmas.
Government reminder over salt bins
Have you passed the salt without noticing?
Weather warning in place for high tides
A yellow weather warning remains in place until the early hours of tomorrow morning.
White Boys touring Island today
One of the Island's festive traditions will be out and about around the Island today.
Road closed after crash
Police say a road in the west of the Island will be closed until this evening.
