Police in the U.K. say a teenage girl has been arrested on suspicion of attempted murder after stabbing a student and two teachers at a secondary school in Wales. Local police said Wednesday that the victims were taken to a hospital for treatment of stab wounds after the attack at Amman Valley School in Ammanford in Carmarthenshire. Police didn't disclose details of what happened, the extent of the injuries or provide further information about the suspect. The school was locked down. U.K. Prime Minister Rishi Sunak and Wales First Minister Vaughan Gething said they were shocked to learn of the attack.