It comes as MPs await the findings of an internal inquiry, which could be published as soon as Wednesday.
Britain is prepared to deploy soldiers to protect allies in Europe should Russia invade, the PM says.
The official figures also show a quarter of schools with teachers and leaders' absence rates above 15%.
Firms in Scotland can move to a "hybrid" system of home and office working next week, Nicola Sturgeon confirms.
A 16-year-old boy is arrested on suspicion of grievous bodily harm after the attack at Walney School.