The militant was killed in a shootout near the town of Tulkarm, after he resisted arrest.
The Israeli military arrested 15 Palestinians, mostly members of the radical movement, during their raids on the West Bank. A radio station controlled by the Islamists was closed down in Jenin.
Egypt has been trying to persuade Israel and the Islamist groups in the Palestinian territories to reach a truce. Islamic Jihad and Hamas, which controls the Gaza Strip, continue to target Israel with rocket attacks from the enclave.
Although Israel and the radical movements have officially denied a ceasefire agreement has been reached, there has been a sharp decline in rocket attacks since Israel ended a devastating offensive in Gaza nine days ago, which saw 120 Palestinians killed, many of them women and children.
