1 killed, 4 injured in knife attack at Benedictine abbey in Poland

One person was killed and at least four others were injured in a knife attack on the grounds of a Benedictine abbey in southern Poland on Thursday, news agency Reuters cited local media report.A 31-year-old Ukrainian citizen was detained following the attack at the Benedictine Abbey in Jaroslaw, police said in a statement.The motive behind the attack was not immediately known.The incident took place at a Benedictine Sisters monastery on the grounds of the abbey, according to local media reports."We are aware that…