Six teenagers from at least two families drowned in the Red River in northwest Louisiana after they stepped off a ledge from shallow water into a chasm about 20 feet deep on Monday. A 14-year-old was rescued.

More in this report from the Associated Press.

http://video.ap.org/?t=By%20Section/U.S.&g=0803dv_la_multiple_drowning&f=1167515

Authorities say the parents could only watch helplessly on the river bank because none of the adults could swim either.