Teachers and unions say schools can become unbearably hot for students and staff
Our map shows the locations of June temperature records across the UK
Charities have also warned about caring for cats in the heatwave
A heatwave pushing temperatures in the UK to extreme heights has sparked warnings that common hay fever tablets may make beating the heat more difficult
The Met Office has issued a red extreme heat warning, with temperatures forecast to soar above 35C
Hundreds of schools have shut amid a red weather warning
Large swathes of country placed under red alert due to extreme heat