Tokyo: An image of a a freelance Japanese journalist who went missing in Syria has been posted online. A Syrian anti-government activist uploaded what appeared to be the photo of Jumpei Yasuda on on Sunday, public broadcaster NHK reported. He is holding a sheet of paper on which is written in Japanese "Please help me. This is the last chance. Jumpei Yasuda". Yasuda hails from Saitama prefecture, near Tokyo. He became a freelance journalist after working as a newspaper reporter. He has been covering conflict areas, including Syria and Iraq. Yasuda went missing after entering Syria from southern Turkey accompanied by a guide in June 2015. Informed sources said Yasuda is being detained by the Al Qaeda-linked Nusra Front group. The Nusra Front reportedly released three Spanish journalists earlier this month.