New disaster threat EMERGES in Nepal as flood-formed lake could BURST

[SPEAKING FOREIGN LANGUAGE]. >> Bill: JUST AN AWFUL DISASTER. IN ASIA. VIDEDEO STRAIGHT OUT OF A MOVIE. RESCUE TEAMS SEARCHING FOR. HUNDREDS OF MISSING PEOPLE ALONG.

THE NEPAL/CHINA BORDER AND. DOZENS OF AMERICANS. 353 PEOPLE CONFIRMED DEAD SO FAR. AFTER FLOODS SWEPT THROUGH. SEVERAL COMMUNITIES AFTER A. BELIEVED GLACIER COLLAPSE. YESTERDAY. THE TOTAL SCOPE OF THAT. DEVASTATION. JEFF PAUL IS TRACKING IT FOR US. JOINING US LIVE FROM LONDON. A WORD OF CAUTION, SOME VIDEO. YOU ARE ABOUT TO SEE IS. DISTURBING. >> WITH SO MANY STILL MISSING. INCLUDING AT LEAST 65 AMERICANS.

ACCORDING TO OFFICIALS, THERE. ARE FEARS THE DEATH TOLL WILL. ONLY RISE AND NOW NEW WARNINGS. FROM OFFICIALS IN NEPAL THAT A. LAKE THAT FORMED IN THE FLOODS. FROM A BLOCKED RIVER COULD SOON. BURST. SECURITY CAMERA FOOTAGE FROM THE. BORDER SHOWS PEOPLE ON THE. GROUND HAD ONLY SECONDS TO FIND. SAFETY. A WALL OF WATER, MUD AND DEBRIS. SWEPT AWAY PEOPLE, CARS AND. BUSES AS WELL AS MANY BUILDINGS. THAT STOOD IN THE WAY. THOSE WHO CALL THIS AREA HOME. ARE SEARCHING FOR ANSWERS AS. WELL AS THEIR MISSING FAMILY. MEMBERS.

>> WE TRIED CALLING HIM AGAIN. HIS PHONE WAS UNREACHABLE. THEN WE HEARD A LANDSLIDE HAD. COME DOWN. WE STILL DON'T KNOW WHETHER HE. IS ALIVE BECAUSE WE HAVEN'T BEEN. ABLE TO REACH HIM. MY BROTHER HAS GONE THERE BY CAR. TO SEE IF HE CAN FIND OUR. FATHER. WE STILL HAVE HOPES THAT OUR. FATHER MAY BE ALALIVE. >> INITIALLY THE U.S. GEOLOGICAL. SURVEY REPORTED AN EARTHQUAKE IN. THE AREA MINUTES BEFORE THE. FLASH FLOOD. THEY NOW BELIEVE IT WAS A. POWERFUL LANDSLIDE THAT STRUCK.

ONE THEORY PART OF A GLACIER. BROKE OFF TRIGGERING AN. AVALANCHE OF ICE AND ROCK AND. CAUSED THE FLOODS. THE RED CROSS SAID 10,000. FAMILIES HAVE LOST HOMES AND. RESCUE EFFORTS COULDN'T BE MORE. DIFFICULT. ROADS ARE BURIED IN MUD AND. SEVERAL CRITICAL BRIDGES THAT. CONNECT THE COMMUNITIES WERE. RIPPED AWAY DURING THE FLOODS. WE SPOKE WITH A HELICOPTER PILOT. YESTERDAY FLYING ABOVE THE AREA. WHEN DISASTER STRUCK. HE TELLS US HE WATCHED AS. EVERYTHING WAS BEING SWEPT AWAY.

AND FELT HELPLESS NOT BEING ABLE. TO LAND AND AID THOSE IN. DESPERATE NEED. >> IT IS DEVASTATING, YOU KNOW, DEVASTATING. WE HAVE NEVER WITNESSED ANYTHING. LIKE THAT, SEEING NATURE UNFOLD. LIKE THAT. IT WAS REALLY HARD FOR US, YOU. KNOW. WE JUST WANTED TO GET OVER THERE. TO HELP PEOPLE OUT AND GET THE. OTHER RESCUERS THERE AS SOON AS. POSSIBLE. >> Bill: U.S. SECRETARY OF STATE. MARCO RUBIO SAYS THE STATE. DEPARTMENT STANDS READY TO. SUPPORT NEPAL WITH AID AND. WORKING TO ACCOUNT FOR U.S.

CITIZENS IMPACTED AND IN CLOSE. CONTACT WITH LOCAL AUTHORITI.