More than 150 schools in England have been identified as having a type of potentially dangerous concrete - with many now closing buildings or classrooms to make them safe.
The government has not yet published a list of which schools are affected - but BBC News is trying to find out through schools themselves. The list is being constantly updated and you can tell us about your school below.
The Department for Education (DfE) said 156 school buildings were identified as having this type of concrete, RAAC (find out more about the concrete here). Of them, 52 were at risk of sudden collapse and action was taken immediately to make them safe, for example by propping up the concrete.
The other 104 are currently scrambling to put safety measures in place to stay open.
Schools with RAAC only have to close or partially close if they do not have safety measures in place, and cannot make alternative arrangements - such as converting other parts of the building into temporary classrooms or moving children to another site.
