After being held in solitary confinement for more than four months, Washington Post reporter Jason Rezaian was formally charged with "unknown crimes" in a Tehran court today.

It's still unclear what Rezaian, who holds a dual Iranian and American citizenship and worked as the Post's Tehran bureau chief, was arrested for last July. The charges, the Post reports, are still unknown to anyone outside the courtroom and Rezaian has not been permitted to speak to the lawyer his family hired. Rezaian's wife, Yeganeh Salehi, who was arrested with him and released in October, is reportedly the only person allowed to visit.

After around 10 hours in court, Rezaian was denied bail and returned to prison. The Post says it could be as long as a month before the court even sets a trial date.

[image via Twitter]