India's sixth space shot ended in failure Wednesday when scientists lost control of an unmanned five-stage rocket carrying a satellite minutes after liftoff and the 40-ton craft plummeted into the Bay of Bengal, officials said.

The 77-foot-high rocket lifted off from the Shriharikota space center, 70 miles north of Madras, bearing the 330-pound satellite that scientists hoped to place into a low-earth orbit.But mission controllers said they lost contact with the missile 210 seconds into the flight. Shortly afterward they reported the craft, by that time out of vision from the launchpad, had tumbled into the Bay of Bengal in India's fourth failed space shot. Two have been successful.