A PRIMARY school was evacuated following a bomb threat yesterday.

Officers carried out an “extensive search” of Ralston Primary in Paisley, Renfrewshire, after the threatening call at about 10.50am.

The children and staff were allowed back into the building just after midday after nothing suspicious was found.

An investigation is under way to trace whoever was behind the hoax.

St Mirren goalkeeper Jamie Langfield, whose daughter attends the school, tweeted about the incident.

He posted: “Some absolute sick vile people out there. Bomb scare at my daughters school today, kids and parents sick to the stomach. All for a hoax.”

He added: “Teachers and emergency services were superb. #thankyou.”

A Police Scotland spokesman said: “Pupils and staff were evacuated as a precaution taken by the school, and following an extensive search by police no suspicious item was found.

“The pupils and staff were able to return to the school around 1.10pm.

“The incident is being treated as a hoax and inquiries to identify those responsible are ongoing.”

A Renfrewshire Council spokesman said: “Police have completed their examination of the school and it will open as normal tomorrow morning. All the children are safe and well. Nursery children and those in P1-P3 were taken to Ralston community sports centre and P4-P7 children to Paisley Grammar School.

“Most were collected during school hours but appropriate arrangements were in place for those picked up at the end of the day, with lunch provided at both sites.

“We would like to express our sincere thanks to parents for their patience and assistance during today’s events.

“After being contacted to collect their children, their quick and calm response helped staff who were working to ensure all pupils were taken to alternative sites and picked up by an appropriate adult.”