Monday marked 22 years since the bombing of the Amia Jewish community centre in Buenos Aires that left 85 people dead.

Argentina's President Mauricio Macri and senior members of his cabinet attended the memorial ceremony, whose motto this year was “memory unites us”.

Instead of placing flowers at the memorial in the courtyard of the Amia building, as was expected, President Macri chose to participate in the traditional ceremony outside the Jewish centre, which included reading of the names of the 85 people who were killed when the centre was hit by a car bomb on 18 July, 1994.

It is widely held that terrorist group Hizbollah carried out the attack with Iranian backing, but Iran has consistently refused to co-operate with the investigation.

Amia Vice President Ralph Thomas Saieg said: "There is an obligation to tell what happened," and called on the country's Justice Minister, Germán Garavano, to make progress with the ongoing investigation.

"It's been 22 years of not knowing what went on as a result of badly introduced evidence, other evidence that hasn't even been considered, and documents that the executive power hid from judges," Mario Cimadevilla, head of a special investigative unit focused on the attack, told Argentine radio.