A container holding hazardous waste was stolen from a property in East Yorkshire.
Humberside Police have launched an appeal to find the large container, which was stolen from Saddlethorpe Broad Lane, Brough.
It is holding asbestos, which can be dangerous to people if they are exposed to it.
The container went missing on February 5 and was spotted in Stainforth near Doncaster on February 8 - but was moved before the owner could collect it.
A force spokesperson said: "We want to find this container as it contains hazardous waste that needs disposing of correctly.
"We are advising that if it is located that it’s not opened and the contents aren't removed."
Anyone with information is asked to call police on 101, quoting reference 16/21534/18.