Woman injures three people in third Polish school knife attack in a week – BBC News Africa

1. Woman injures three people in third Polish school knife attack in a week BBC
2. Police arrest dozens, check 50,000 schools after two attacks rock Poland CNN
3. Poland: three injured in third stabbing attack on young person in four days Reuters
4. Third school attack in less than a week shakes Poland AP News
5. Guard killed, two teachers injured in knife attack at Polish school BBC

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