A GROUP of more than 20 secondary school students have returned to school after one of their classmates tested positive for Covid.

About 25 youngsters in one class bubble at Thomas Lord Audley school in Colchester were told to self-isolate after one boy tested positive as part of routine testing on Friday.

However, headteacher Simon Essex said the boy has now tested negative via a PCR test for the virus.

Children in the bubble returned to school on Wednesday.