**An assailant has killed a teacher at a school in the western German city of Ludwigshafen, police say.**Police have evacuated the school and arrested a 23-year-old suspect, German media report. The incident happened at about 1000 local time (0900 GMT).
Some reports say several teachers were attacked in a “rampage”. It is not yet clear what weapon was used.
The vocational school in the Mundenheim district has more than 3,200 pupils. It has been sealed off by police.
The premises has also been searched by police. Normally 130 teachers work there.