Four horses have been killed in an arson attack on a stable block in Lancashire.
Three horses were rescued but four died in the fire, which started on Monday, 14 July night at Sough Farm in Darwen.
The fire was discovered at 11.30pm by the owner when she was out with her dog.
Firecrews brought the blaze under control but the main stable block was completely destroyed.
Detective Inspector Andy Hulme, from Blackburn CID, said: “We are appealing for any witnesses who saw anybody acting suspiciously in the Northumberland Close area between 10pm and 11.30pm to contact police.
“The scene is currently cordoned off while investigations into the cause of the fire are carried out and we are also trying to establish a motive for this attack.”
Three local youths, aged 17 and 18, have been arrested on suspicion of arson. One has been released on bail, the other two are being questioned.
Anybody with any information should contact the police on 01254 51212
