At a freight forwarding company in Maxdorf in the Vorderpfalz region, there was an industrial accident involving chemical substances on Wednesday.
Eight employees were slightly injured, the police announced in the evening.
They had complained of eye and respiratory problems and had been taken to hospitals as a precaution.
Maxdorf - According to the information, two chemical substances reacted with each other in a disposal container.
This led to a build-up of heat.
The police did not provide any information about what the substances were or why they came into contact with each other.
Earlier there was talk of acid.
The fire brigade had cooled the container down so that it no longer posed any danger.
For the population of the community in the Rhein-Pfalz-Kreis there was no danger at any time.
dpa