In a statement released on Sunday, Qassemi offered his condolences to the bereaved families of the victims of the terror attacks on pedestrians on London Bridge that killed at least seven people and wounded tens others.
An increase in blind terrorist attacks around the world is a warning sign to the international community, he said.
“Terrorism in all its forms and shapes and with any purpose and motivation is blameworthy, rejected and condemned,” the spokesman underlined.
Iran believes that the only way to rid the world of “this inauspicious anomaly (terrorism)” is for all countries to avoid double standards and honestly join an international campaign against violence and extremism, Qassemi added.
Militants drove a van at high speed into pedestrians on London Bridge before stabbing Saturday night revelers on the street and in nearby bars, killing at least six people and wounding more than 30.
Armed police rushed to the scene and shot dead the three male attackers in the Borough Market area near the bridge, as authorities urged Londoners on Twitter to “run, hide, tell” if they were caught up in the violence.
The attacks come days ahead of a June 8 election and less than two weeks after a suicide bomber killed 22 people at a pop concert in Manchester in northern England. There was no immediate claim of responsibility.