An al-Qaeda affiliate has threatened to kill an American hostage in three days if the U.S. government does not respond to the group’s demands, according to terrorist monitoring group Site Intelligence Group.

Luke Somers, a 33-year-old photojournalist, was abducted in 2013 in Sanaa, the capital of Yemen, according to media reports. In a YouTube video published Wednesday, he says he is certain his “life is in danger.”

The video features an al-Qaeda official and a brief message from Somers – dressed in a purple shirt and with a shaved head – at the end. He notes that he was born in England but has American citizenship and lived in America for most of his life.

The al-Qaeda operative who speaks throughout much of the video and threatens that Somers will meet his “inevitable fate” if the group’s demands are not met is Nasser bin Ali al-Ansi of the Arabian Peninsula affiliate, Site Intelligence Group said. The video does not list what those demands are, but al-Ansi says Washington is “aware” of them.

“It’s now been well over a year since I’ve been kidnapped in Sanaa,” Somers said in the footage. “Basically, I’m looking for any help that can get me out of this situation. I’m certain that my life is in danger. So as I sit here now, I ask, if anything can be done, please let it be done. Thank you very much.”

Somers was kidnapped in September 2013 from a street in Sanaa, where he had worked as a photojournalist for the Yemen Times, the Associated Press said.

Since his capture, Yemeni journalists have been holding sit-ins in Sanaa to press the government to seek his release.

U.S. Special Operations forces and Yemeni troops attempted to rescue Somers last week, but he had been moved to another location, the Washington Post reported. Eight hostages were freed in a remote corner of Yemen’s Hadramawt province in the operation.

At the time, a Yemeni official said the mission failed to free five others, including an American journalist who was not identified by name and a Briton, who were moved elsewhere by their captors days before the raid.

In the video, al-Ansi criticizes U.S.-led airstrikes against the Islamic State group and President Obama for his “latest foolish action,” referring to the “failed operation” in Hadramawt. He says an “elite group of mujahedeen,” or holy warriors, were killed in the raid.

He also warned the U.S. against more “stupidities,” referring to future attempts to rescue hostages.

The hostage rescue operation was carried out at the request of Yemen’s President Abdu Rabbu Mansour Hadi, and was “at least partly an attempt to bolster the stature of Mr. Hadi, a committed but wobbling United States ally whose authority was badly undermined when a rebel group suddenly seized control of Yemen’s capital in September,” the New York Times reported.