Mobs threatened to destroy the houses of Afghans, Pakistanis and Iranians - most of whom are part of minority Muslim sects such as the Ahmadiyya - who had fled to Sri Lanka after suffering persecution in their homelands.
Some also reported that they had been beaten up by gangs wielding sticks and stones.
A small number of istian refugees from the three countries have also been caught up in attacks through mistaken identity.
For details: https://bit.ly/2PCmZkd