Brexit is a rising threat for HBO’s hit series Game of Thrones season 7. If  the UK votes to leave the European Union, the show may face a major loss. Since two of its final season are under production work on the British soil, the news could be a blow for HBO. Does that lead to Game of Thrones season 7 cancellation?

‘European Regional Development Fund’ (ERDF) is one of the major sources of funding for “Game of Thrones.” It is a group that aims for increased economic growth in the European Union,  CNBC reports.

If Britain departs the European Union, HBO could lose one of its primary shooting spots — Northern Ireland. Northern Ireland is the backdrop for many of the fantasy series’ most dramatic scenes. For example, the Battle of the Bastards from last week’s episode. In fact, the EU helps subsidise the cost of production. If Britain leaves the pack, those funds would possibly dry up. Filming could cost a fortune for the channel and would require it to either change place or find alternative funding.  Currently, stakes are really high for “Game of Thrones” season 7, reveals The Telegraph.

“It might be up in the air for U.S. studios who want to film in the U.K. There are EU programs to help fund all of this. If the U.K. is no longer part of the EU that has the potential to go away,”  Peter Chase, a senior fellow at the German Marshall Fund of the United States (Brussels office) told Foreign Policy.

It is not just “Game of Thrones” that could see its funding obstructed. A report published ivy the website highlights what could be the possible catastrophic effect of Britain’s withdrawal.

British film and television projects were granted a total of $32 million in the last 7 years from organizations like Creative Europe. These groups, like the ERDF, seek to increase economic growth and jobs in the European Union. The beneficiaries include Brooklyn and Carol, two Academy Award nominated films from 2015.

More than 280 actors, authors, and leaders of the U.K.’s creative industries signed a letter. The Telegraph published it in May urging Britain to remain in the EU. Important signatories were Keira Knightley, Sir Patrick Stewart, Sir John Hurt, Benedict Cumberbatch and Helena Bonham Carter.

The letter reads out:

“Leaving Europe would be a leap into the unknown for millions of people across the U.K. who work in the creative industries, and for the millions more at home and abroad who benefit from the growth and vibrancy of Britain’s cultural sector.”

Do you think Brexit could put a stop to Game of Thrones Season 7 further development?

Update: Brexit Results are Out: Britain Leaves European Union.