A teacher allegedly assaulted in school by a pupil "brandishing a weapon" has been discharged from hospital, police have said. A 15-year-old boy was arrested on suspicion of attempted murder and remains in police custody. Officers were called to Milford Haven Comprehensive School in the Pembrokeshire region of southwest Wales at about 3.20pm on Thursday. Dyfed-Powys Police received a report that a teacher was assaulted by a pupil brandishing a weapon. The school will be closed on Friday and