Egyptian former anti-corruption chief Hisham Geneina will face military trial after saying a presidential candidate he supported had documents damning to state officials, his lawyer said on Thursday.

The military had detained Geneina in February following his remarks in an interview with Huffpost Arabi, the Arabic version of the US news site.

He will stand trial on April 16 on charges of “spreading news that harms the armed forces,” his lawyer Ali Taha said.

Geneina had been a top campaign aide to Sami Anan, whom the military also detained after he announced he would stand in last month’s presidential election against incumbent Abdel Fattah al-Sisi, who won overwhelmingly.

Geneina had said the documents Anan allegedly possessed “revolve around political events and crises Egyptian society has passed through” since the January 2011 uprising which toppled veteran strongman Hosni Mubarak.

He said they were held in a “secure” place abroad and could be released if Anan is harmed.

Moataz Wadnan, the journalist who conducted the interview, has also been arrested.