Excerpt:
Hungary will hold a referendum on 2 October on whether to accept mandatory EU quotas for relocating migrants, President Janos Ader has said.
PM Viktor Orban's right-wing government opposes plans to relocate a total of 160,000 refugees across the bloc.
The EU announced the scheme last year in response to the migrant crisis.
Analysts say Mr Orban is emboldened by UK's vote to leave the EU, after a campaign in which immigration was a key issue.