New Delhi: Congress President Sonia Gandhi on Saturday condemned the "gruesome" terror attack on peaceful demonstrators in Kabul. Expressing her grave concern and grief, she said: "Though several cities of the world have been attacked in the last one month by practitioners of organised and mindless terrorism, it will only strengthen our resolve to stand united and decisively fight the forces of division and terror, irrespective of their faith or belief." She also extended condolences to the people of Afghanistan and bereaved families and wished fast recovery to the injured. At least 80 people were killed and over 230 injured when Islamic State suicide bombers targeted a mass demonstration in the Afghan capital on Saturday. Gandhi also condoled the passing away of celebrated Indian artist Syed Haider Raza.