Seventeen Edinburgh schools have been closed after structural engineers found problems with two of those built through a private finance initiative.
Parents at all schools in the city built through the PPP1 scheme were told to find alternative childcare arrangements for this week.
Safety concerns were raised after a wall collapsed in high winds at Oxgangs Primary School.
City of Edinburgh Council said engineers working on remedial works at the school had found an absence of “header ties”, the sliding links that connect the inner block wall to the structural steel frame.
Operating body the Edinburgh Schools Partnership said the issue also related to St Peter’s Roman Catholic Primary School, and that a full structural survey would be carried out on all schools built through PPP1.
“Edinburgh Schools Partnership will accept full financial responsibility for investigating and resolving these issues to ensure that each and every PPP1 school undergoes all necessary remedial work,” said the body.
“We would like to apologise to parents and pupils for all of the uncertainty and inconvenience caused, and give our sincere assurances that we will fix these issues.”
Scottish education secretary Angela Constance said: “The first minister will today chair a meeting of the Scottish Government’s resilience committee to ensure that everything possible is being done to help.
“It is too early to assess any wider implications for schools in other parts of Scotland. However, Scottish Government officials have written to all local authorities this weekend to ask them to carry out any necessary checks on their own estate as soon as possible.”