Over 215,000 signatures have been collected in four days for calling a referendum at which Croatians would be able to vote for a Constitution provision reading that marriage is the union of a man and a woman.
The collection of signatures started last Sunday, and will last until 26 May. In this period it is necessary to collect 375,000 signatures.
Activists of the civil society organisation that launched this initiative reported on Thursday that they were confident in their success.
On Wednesday they reported several incidents directed against its volunteers in the past days, and the police later stated that an investigation was under way.
In one of those incidents, an inflammable object was hurled at the NGO's stand in Zagreb, lightly injuring a volunteer.
The activists today refuted accusations from some civil society organisations that this NGO was working hand in hand with some political parties or religious organisations.
The initiative is non-political, nonpartisan, open to people of different world views and religions, said Zlatko Hasanbegovic.
The association called "In the name of the Family" is collecting the required 375,000 signatures at about 2,000 sites throughout Croatia.
The possible referendum will ask the question "Do you support the proposal that the Croatian Constitution include a provision that marriage is the union of only a man and a woman?".
According to the NGO's activists, signatures are being collected at public places, in front of Catholic and Orthodox churches and mosques as well as in all universities throughout Croatia.
Every Croatian above the age of 18 is eligible to give their signature.
