An Israeli-Canadian woman who was reported captured by the Islamic State group apparently said on Facebook Monday that she was "totally safe and secure" and dismissed reports of her abduction.

On Sunday, Islamist websites -- some of them known to have ties to the Islamic State, also known as ISIS or ISIL -- posted reports that Gill Rosenberg, 31, had been captured during battles with Kurdish fighters, The Jerusalem Post reported. But the websites gave no further details regarding her capture, whether she was in Iraq or Syria or provided any proof.

Idris Nassan, a Kurdish official in the Syrian town of Kobani, had also denied the reports to the Post, dismissing it as propaganda.

"Guys, I'm totally safe and secure," someone appearing to be Rosenberg wrote in a Facebook post Monday afternoon. "I don't have Internet access or any communication devices with me for my safety and security. I can't reply regularly and only happened to have a chance to log in and see these buklshit news stories. Ignore the reports I've been captured. Yalla, Acharai!"

However, a post written roughly one hour later on her profile that was said to be "on behalf of Gill Rosenberg" appeared, telling people to not listen to the reports about the kidnapping. The author, who was not identified in the post, said they would provide an update "when I hear from her."

The Canadian Broadcasting Corporation, citing unnamed sources, said Rosenberg has also communicated in private Monday and that the update to her Facebook page appears to be authentic.

The Shin Bet, Israel's security agency, told the Post that there were no additional details available.

Rosenberg had written on Facebook on Nov. 20 that she was handing over management of her account to another person and would be without Internet access for at least two weeks, though it was not clear where she went at this time. She told Reuters in November that she was in Syria, and a source linked to the YPG, the Kurds' dominant fighting force in northern Syria, said last month that she was their first female foreign recruit and had crossed into Syria to fight ISIS militants, the CBC reported.

Rosenberg, who was born in Vancouver, decided to emigrate to Israel in 2006, where she joined the Israel Defense Forces and served as an instructor for Kenyan soldiers who came to Israel for home front search and rescue training. She had ambitions to join the Mossad, Israel's intelligence agency, but was injured during her military training, the Post reported.

The Post added that she was part of a ring that allegedly tried to cheat elderly Americans and steal their money through a fake lottery. Indictments filed against the group say they stole upwards of millions from pensioners. She was extradited to the United States in 2009 where she served more than three years in prison, the CBC said.

Click here to read more from The Jerusalem Post and the CBC.