ATTEMPT TO COMPENSATE THE

PRESSES FROM INSIDE ISRAEL.

>>> IRAN HAS BEGUN FIVE DAYS OF

NATIONAL MOURNING FOR THE

PRESIDENT.

FOR OTHER OFFICIALS WERE KILLED

WITH HIM IN A HELICOPTER CRASH

ON SUNDAY.

STATE MEDIA RELEASE VIDEO

SHOWING MILITARY OFFICIALS

LINED ALONG A RED CARPET TO

ESCORT THE COFFIN.

LET'S BRING IN CBS NEWS SENIOR

CORRESPONDENT CHARLIE D'AGATA

FROM LONDON.

CHARLIE, THANK YOU FOR JOINING.

WHAT CAN WE EXPECT TO SEE IN

TERMS OF THESE FUNERAL SERMONS

OVER THE NEXT FEW DAYS?

>> Reporter: AS YOU SAID, FIVE

DAYS IN MOURNING.

THAT WILL BE FIVE DAYS OF

TRIBUTES AND CEREMONIES.

TENS OF THOUSANDS OF PEOPLE

HAVE ALREADY TURNED OUT.

AGAIN, NOT JUST FOR THE IRANIAN

PRESIDENT BUT THE FOREIGN

MINISTER AND SIX OTHER PEOPLE

KILLED IN THAT HELICOPTER

CRASH.

THERE HAS BEEN A PROCESSION AS

YOU SEE IN SOME OF THOSE

IMAGES.

THAT IS WHERE THE HELICOPTER

WAS HEADED WHEN IT CRASHED.

IT THEN WENT TO THE CI CLERICAL

CENTER BEFORE BEING MOVED TO

TYROD.

THE OFFICIAL MAIN

CEREMONY TAKING PLACE THIS

AFTERNOON -- YOU MAY BE SEEING

A LOT OF LIVE PICTURES AT THE

MINUTE -- IRANIAN LIVE STATE TV

SAID THE FUNERALS WERE ATTENDED

BY HUNDREDS OF THOUSANDS OF

PEOPLE.

IRAN'S HIGHEST BODY SAID

MOURNERS IS A GUARANTEE OF THE

SECURITY OF THE ISLAMIC

REPUBLIC.

>> WHAT IS THE LATEST ON THE

INVESTIGATION INTO WHAT CAUSED

THE HELICOPTER CRASH?

>> Reporter: THERE IS STILL A

LOT OF MYSTERY AROUND IT.

WE KNOW THEY CRASHED IN A

MOUNTAINOUS REGION IN THICK

FOG.

AN INVESTIGATION IS STILL UNDER

WAY.

YESTERDAY, IRAN HAD ASKED FOR

AMERICAN ASSISTANCE WHEN THE

HELICOPTER DISAPPEARED.

THE STATE SAID THEY WERE UNABLE

TO PROVIDE THAT FOR LOGISTICAL

REASONS WITHOUT ELABORATING.

SO THEY HAVE NOT PROVIDED ANY

STATISTICAL REASONS.

THIS IS AN OLD HELICOPTER.

45 YEARS OLD.

IT PROBABLY LACKED MODERN

EQUIPMENT TO NAVIGATE IN FOG

THROUGH THE DARKNESS AND

MOUNTAINS.

A FORMER IRANIAN GOVERNMENT

OFFICIAL BLAMED U.S. SANCTIONS

TO KEEP HELICOPTERS LIKE THAT

AIRWORTHY.

OF COURSE, SOME VOICES IN IRAN

HAVE HINTED AT SABOTAGE.

ISRAEL HAS DENIED ANY

INVOLVEMENT.

>> I MEAN, THE FOG LOOKS VERY

DENSE IN THOSE IMAGES.

SO YOU TALKED ABOUT HOW THAT

MASS SHOW OF MOURNING AND

SOLIDARITY MEANS TO STABILITY

IN THE COUNTRY.

WHAT DOES RAISI'S DEATH MEAN

FOR THE STABILITY OF THE

COUNTRY AND THE FUTURE?

WILL IT REMAIN ALONG THOSE SAME

LINES?

>> Reporter: THAT IS THE

ULTIMATE QUESTION.

IT IS IMPORTANT THAT THE

SUPREME LEADER CAME OUT AND

SAID THERE WILL BE NO

DISRUPTION IN THE COUNTRY.

CLEARLY, THEY ARE ADDRESSING

THAT.

A NEW ELECTION WILL BE HELD IN

50 DAYS -- 50 DAYS FROM

YESTERDAY -- 49 NOW.

IT IS MORE LIKE THE VICE

PRESIDENT DIED IN TERMS OF WHO

REALLY HOLDS THE INFLUENCE IN

IRAN.

THE QUESTION NOW IS WHETHER

THERE WILL BE A SUCCESSION

CRISIS.

RAISI HAD WIDELY BEEN EXPECTED

TO TAKE OVER FOR AYATOLLAH

AYATOLLAH KHAMENEI.

IT COULD NOW GO TO HIS SON WHO

IS HIGHLIGHTED AS A POSSIBLE

SUCCESSOR.

THERE IS LITTLE LIKELIHOOD OF A

MODERATE OR WEST LEANING

PRESIDENT BECAUSE THEY ARE

CHOSEN FROM THE REGIME.

THERE MAY BE SOME POLITICAL

INTRIGUE BUT THIS IS NOT A

POWE