09/10/2013 09:28 EDT | Updated 11/10/2013 05:12 EST

Writers, filmmakers to demand Egypt free detained Canadians

A group of Canadian filmmakers will demand the release of two Canadians detained in Egypt at a news conference will carry live from the headquarters of the Toronto International Film Festival Tuesday.

- Canadians arrested during 'very bloody day'

- Canadians remain in Egypt jail as prosecutor no-shows

- Detained Canadian meeting with lawyer

Tarek Loubani, a doctor from London, Ont., and John Greyson, a Toronto filmmaker and university professor, were arrested on Aug. 16 amid deadly riots in Cairo. They have yet to face any formal charges.

The pair were arrested while making their way to Gaza where Loubani was to teach emergency room medicine and Greyson was considering producing a documentary.

Filmmakers Atom Egoyan and Sarah Polley, along with novelist Michael Ondaatje, have planned a news conference at the TIFF Bell Lightbox — the film festival's headquarters — to demand that Egyptian authorities free the men.

The news conference is scheduled for 10 a.m. ET. You can watch it live on by clicking on the image at the top of this story.

Polley handed out "Free Tarek and John" buttons at a pre-TIFF party for the Film Critics Association.

The arrest of the Canadians has also sparked a social media campaign urging for their release.

Egoyan appears in this video urging for Greyson's return:

Greyson’s students have also released this YouTube video, demanding his release: