The RSPCA is appealing for information on who dumped a horse at the side of a slip road off the A13 near Stanford-le-Hope in Essex.
The body of the piebald mare and her foal were found by police yesterday afternoon (23 April).
They were lying on the verge of a road leading off the B1007.
RSPCA Inspector Steven Craddock said:
“We believe they were dumped around teatime on the 22 April.
“If anyone saw a vehicle or horse box in that lane around that time and took a note of the registration number we would like to speak to them.
“It is unbearably sad to see an animal given so little care that they die giving birth – the mare must have suffered greatly and we would like to find the person responsible.”
Anyone who has any information can call our Inspector information line in confidence on 0300 123 8018.
To help the RSPCA investigate cases like this you can give £3 by texting the word HELP to 78868 (Texts cost £3 plus one standard network rate charge).