Head teachers have raised safety concerns and asked DfE if numbers should be capped
Almost one in four primary-aged children attended school in England last week as demand for places continued to rise during the latest lockdown.
Official government data showed that 23% of pupils in state primary schools were on site last Thursday, up from 21% last month. Attendance was also up in special schools, which have been asked to remain open, from 30% in January to 35% last week.