At least 11 Palestinians have been killed by Israeli forces in the north of the occupied West Bank, Palestinian health officials say.
There are also reports of Israeli military activity involving the use of tanks and bulldozers in the Palestinian cities of Ramallah, Qalqilya and Tulkarm in the West Bank.
Six people died in a drone strike and armed clashes near Jenin and five were reportedly killed in an air strike in al-Far’a refugee camp in the Jordan valley.
Israeli security forces say it is carrying out "a counterterrorism operation" in the north of the occupied West Bank.
It is believed to be the first time since the second intifada - a major Palestinian uprising from 2000 to 2005 - that several Palestinian cities have been targeted simultaneously in this way.