More than 1,000 pupils have not turned up to a school that received online death threats.
Threats to kill pupils in a shooting on Monday at Montgomery High School in Blackpool were posted on social media. The user said they planned to “kill as many people as possible.”
The school confirmed 360 of its 1,375 pupils have attended.
Police officers have been patrolling outside the school for “reassurance”, a police spokeswoman said.
The planned attack was in revenge for alleged bullying, the Facebook post said.
Responding to one student after the post was made, the user asked: “You think it’s a joke? You’ll see bullets, bodies, and blood.”
A statement from the school, in Bispham, said: “We have continued to plan for an orderly start to the term with ‘safe business as usual’ being our aim.”
The school said Blackpool Council had “kindly provided counselling services for any students who have found the last few days upsetting and stressful.”
Lancashire Police said: “There is nothing to suggest these messages pose a credible threat.”