Four militants from the Palestinian Islamic Jihad (PIJ) group have been killed in an Israeli military operation in the West Bank, as a knife attack by an Israeli Arab in northern Israel left two people severely injured on Wednesday. The PIJ, which is active in both the Gaza Strip and the West Bank, said the four men were members of its organization. According to the Ministry of Health in Ramallah, the four men were between 20 and 24 years old. The Israeli military confirmed that it conducted an operation on Tuesday in Tulkarm, in the north-east of the West Bank. It said an army aircraft “struc…