A public rally is to be held at Dove House at 3pm this afternoon to protest against recent attacks on the organisation.
The community organisation in the Bogside area of Derry - Londonderry has been targeted three times within the last month.
Less than 48 hours ago paint and petrol bombs were thrown at the building in Meenan Square.
The outside wall of the centre suffered scorch marks after wood was pushed against it and set alight.
A neighbour raised the alarm after spotting the flames outside the organisation at around 11pm last night.
Inspector Colin Hamilton said:
"Enquiries are ongoing and I would appeal to anyone who witnessed this incident, or who can provide information that would assist in our investigation, to contact police on the non-emergency number 101 quoting reference 1543 of 18th August.
"Alternatively, information can be provided anonymously through Crimestoppers on 0800 555 111."
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