Eleven Olympians were killed in the siege
An Israeli organisation wants an apology and reparations from Palestine over the murder of 11 of its Olympians in 1972.
Israeli athletes and coaches were taken hostage by Palestinians in ski masks from the group ‘Black September’ in the German city of Munich.
After negotiations to free the Israelis broke down, the hostages were taken to Munich Airport.
Once there, German police opened fire and killed three of the hostage takers.
A subsequent gun battle left the hostages, two more Palestinians and a policeman dead.
The International Olympic Committee (IOC) is to officially recognise the Munich massacre for the first time.
A memorial is to be dedicated in the centre of the Olympic Village in Rio de Janeiro, which will then be carried to the Summer Olympics in Tokyo in 2020.
There will be a moment of reflection during the closing ceremony in Rio, during which the National Council of Young Israel (NCYI) hopes IOC President Thomas Bach may read the names of those killed.
The IOC is also supporting a memorial to the athletes at the former Olympic Village in Munich.
The NCYI claims the Palestinian Authority President, Mahmoud Abbas, financed the 1972 attack.
It alleges Mr Abbas also praised the last living Palestinian involved in the attack - Abu Daoud.
“Daoud wrote a book in which he described how Abbas kissed him on the forehead and wished him luck before the attack,” the NCYI adds.
President of the NCYI, Farley Weiss, said: “Abbas has never apologised for his actions, nor has he been penalised for them.
“The Palestinian Authority not only has failed to make amends to the families, but it has further extolled the terrorists who participated in the heinous attack that forever changed the Olympics.”