CHICAGO, Dec. 7 (UPI) - Conspiracy charges in the 2008 Mumbai attacks were filed against a Chicago man, U.S. officials said Monday. David Coleman Headley allegedly attended Lashkar-e-Toiba-operated terrorism training camps in Pakistan and conspired with its members and others in planning and executing attacks in both Denmark and India, federal law enforcement officials announced in Chicago. Headley, arrested in Chicago Oct. 3, is cooperating in the investigation of both the Danish and Indian terror plots, officials said. He also was charged with helping to plan a terrorist attack against a Danish newspaper and two of its employees after the newspaper published cartoons depicting the Prophet Mohammed, which many Muslims found offensive. Headley, 49, was charged in a 12-count indictment with six counts of conspiracy to bomb public places in India, to murder and maim persons in India and Denmark, to provide material support to foreign terrorist plots and to provide material support to Lashkar, and six counts of aiding and abetting the murder of U.S. citizens in India. About 170 people, including six Americans, died in the attacks on India's financial and entertainment hub. In the indictment, Headley was charged with gathering surveillance in Mumbai by, among other things, opening an immigration services office as cover. He traveled between Mumbai and Pakistan on several occasions, the indictment said. Headley allegedly conducted surveillance elsewhere in India of facilities and locations that were not attacked in November 2008, the indictment said. This case serves as a reminder that the terrorist threat is global in nature and requires constant vigilance at home and abroad, said David Kris, assistant attorney general for National Security. We continue to share leads developed in this investigation with our foreign and domestic law enforcement partners as we work together on this important matter.