Addenbrooke's Hospital: Six treated after lab substance spillage
Six people have been treated in hospital after a "substance" spillage at a pathology laboratory on the site.
The spillage at Addenbrooke's Hospital in Cambridge happened at about 11:20 BST, causing the building to be evacuated as a precaution.
Cambridge University Hospitals NHS Foundation Trust said the spillage had involved an "unconfirmed substance".
Six members of staff were treated in A&E for respiratory issues but were said to now be "medically well".
The hospital said that patient services were not affected.
Cambridgeshire Fire and Rescue Service said those affected would "continue to be monitored".
More than 20 firefighters, including crews from Cambridge, St Neots and Newmarket in Suffolk, were at the scene.