Israeli army on Wednesday arrested 21 Palestinians in the West Bank, Palestinian sources said.

Among them, 12 people, including officials from Islamic Hamas movement and the Popular Front for the Liberation of Palestine, were arrested in the city of Nablus , Palestinian security sources said.

Other raids took place in Hebron and Bethlehem where a total of nine were arrested.

Israel Radio reported that West Bank raids are targeting wanted Palestinians, and they take place on a daily basis.

Meanwhile, on Wednesday, Jewish settlers burnt the entrance of Ali Ben Abi Taleb mosque near the city of Salfeet, as well as the Palestinian cars outside it.

Residents of Burqeen village, where the mosque is located, said that the settlers burnt the entrance after they could not open the door of the mosque. The settlers also wrote religious slogans against Arab and Muslims.

"This attack is part of an organized campaign supported by the rightist, fanatic Israeli government," said Mohammed Hussin, the Palestinian Mufti.

According to Israel Radio, an investigation has been launched over the attack.