RABAT — A Moroccan editor is being investigated on suspicion of helping militants after posting an al Qaeda video on his website, prosecutors said, in a case that rights groups say erodes press freedom.

Anouzia.

Ali Anouzla, editor of Lakome.com and known for his investigative journalism and columns, criticizing the kingdom’s rulers, was arrested this month after writing about and posting a link to a video from al-Qaeda in the Islamic Maghreb, the North African affiliate of the group.

In the video, originally posted by a Spanish newspaper but then removed, the organization criticizes Morocco’s king and calls on the Moroccan people to rise up.

Morocco’s prosecutor-general ordered an investigation into him on suspicion of intentionally helping those who want to perpetrate acts of terrorism, providing the means to execute terrorist crimes and being an apologist for acts considered terrorist crimes, the state news agency said late on Tuesday, Sept. 24.

Amnesty International, Human Rights Watch, the Committee to Protect Journalists, Reporters without Borders and Moroccan human rights organizations have all urged the government to free the editor.