Police and paremedics were called to Southway in Mirfield just before 9am this morning (Weds April 18) after receiving reports of a "concern for safety."
A West Yorkshire Police spokesman, said: "Ambulance and police attended on Southway in Mirfield, where a boy was found with serious injuries.
"The 14-year-old was taken to hospital for medical treatment. Enquiries are ongoing to establish the circumstances."
A police cordon is in place on Southway this morning as investigations continue.