Two people have been treated by paramedics after inhaling fumes from a chemical leak at a farm in Dorset.
The fire service was called by South Western Ambulance Service to Pentridge, near Cranborn, at about 1035 BST.
It is believed a container of formaldehyde was kicked over by an animal, a spokeswoman said.
Three fire crews have been dealing with the clean-up operation. It involved the chemical being absorbed into sand or soil.