He gave no further details, but the Israeli Ynet news site said troops had surrounded the attacker’s home to arrest some of his relatives.
Palestinian news agency Wafa shared a video on Twitter in which gunshots could be heard. The Palestinian Health Ministry said at least one Palestinian had been killed and 10 injured. The Islamic Jihad militant group identified the dead man as one of its fighters.
Jenin is considered a stronghold of Palestinian militants. Israeli forces often come under fire when operating in the area. Even the Palestinian Authority, which administers parts of the occupied West Bank and coordinates with Israel on security issues, appears to have little control.
In Thursday’s shooting, a Palestinian gunman opened fire in central Tel Aviv, killing three people. The attacker, identified as Raad Hazem, 28, from Jenin, was later killed by Israeli forces.
It was the fourth deadly attack in Israel by Palestinians in three weeks and came at a time of heightened tensions around the start of the Muslim holy month of Ramadan. Two of these attacks were carried out by men from Jenin.
Protests and clashes in Jerusalem during Ramadan last year helped spark an 11-day war between Israel and the militant group Hamas.