Israeli forces have killed two more Palestinians in a continued crackdown over the kidnapping of three teenagers. Two Palestinians were shot dead on Sunday, including one man in Nablus who had allegedly thrown rocks at Israeli troops. Demonstrators also confronted Palestinian Authority forces in Ramallah, asking them for protection against Israeli raids. At least four Palestinians have been killed and 330 have been detained since the teens were kidnapped earlier this month while hitchhiking from a Jewish settlement. No group has claimed responsibility, but the Israeli government has blamed Hamas.