A bomb tore through a moving train in India's remote northeast Thursday, killing five passengers and injuring four others, officials said. The New Delhi bound high-speed Rajdhani Express, which started from the eastern town of Dibrugarh in Assam state, had just crossed a station near Chungajan, 270 kilometers (170 miles) east of state capital Gauhati when the bomb exploded, jolting passengers out of their sleep, T. Rabha, an Indian Railway spokesman told The Associated Press. "A car near the luggage van took the whole impact of the blast before dawn Thursday. Five passengers were killed and four others wounded," Rabha said. A little-known militant group claimed responsibility for the attack.