India, March 18 -- An American citizen, Matthew Aaron VanDyke, was arrested by the National Investigation Agency (NIA) on March 13 along with six Ukrainian nationals. The agency said all of them had entered India on tourist visas illegally and were working in close contact with anti-India insurgent groups.

Officials identified the six Ukrainians as Hurba Petro, Slyviak Taras, Ivan Sukmanovskyi, Stefaniv Marian, Honcharuk Maksim and Kaminskyi Viktor.

VanDyke is from Baltimore in the US state of Maryland. According to his website, he has worked as a soldier, an international businessman, a war correspondent and a columnist.

In January and February 2009, Matthew VanDyke worked as a war correspondent for The Baltimore Examiner, where he wa...