Children may have been radicalised during lockdown
Nicky Nijjer has warned that children have been exposed to more extremist material on social media during lockdown and could return to school radicalised.
The Welsh racism educator said that there has been a particular rise in far-right posts in recent months.
With children and young people spending more time online, police say the risk of radicalisation had increased despite a fall in counter-terror referrals.
Nijjer works for the Don't Hate, Educate project, based in Swansea. He said that teachers need to be alert to and challenge extremist attitudes among pupils when schools reopen in Wales.
Don't Hate, Educate aims to challenge misconceptions and myths about race and religion by introducing children and young people to others from different backgrounds.