A school had to stop pupils from coming in after half-term after a ‘chemical spill’ was reported.
Firefighters rushed to Greenfield Academy in County Durham after the incident sparked as equipment was being brought into a new building on Monday.
Pupils were left to work remotely as the problem was brought under control.
James Keating, executive headteacher at Greenfield Academy, said the school was evacuated as a ‘precaution’.
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He said: ‘On Monday a chemical spillage occurred during the transfer of equipment and resources into Greenfield Academy’s new building.
‘As a precaution, the building was evacuated and established safety procedures were followed. County Durham and Darlington Fire and Rescue Service attended and safely managed the incident.
‘Specialist contractors attended the site to undertake the necessary cleaning and safety checks.
‘The affected area was assessed, and confirmation was received that the building was safe to occupy.
‘Following the half-term holiday, we are delighted that pupils can enjoy their fantastic new facilities as planned.
‘Today marks an important milestone for Greenfield Academy. We welcome our school community into a new building that will provide exciting opportunities for our pupils for many years to come.’
A spokesperson for County Durham and Darlington Fire and Rescue Service confirmed four appliances had attended the incident.
The refurbishment project consists of a brand-new teaching block, an extension to the sports hall, and a full refurbishment of the administration, Music, Drama and the main hall.
It was due to be completed by the end of October half term.
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