Israeli tanks rolled overnight into Palestinian-controlled areas of Hebron and around Jenin and arrested 19 Palestinians.
Thirteen Palestinians were arrested in Hebron, in the southern West Bank. Three of those arrested were wanted by Israel over anti-Israeli attacks, sources said.
Four other men were detained in Silat Al-Harthiya near the town of Jenin, in the northern West Bank. It was not known if they belong to any faction.
Two men affiliated to Palestinian leader Mr Yasser Arafat's Fatah movement were also arrested near Jenin in the small town of Silat Dhaher, according to sources.
The troops later withdrew from the Palestinian-controlled part of Hebron and the two small towns near Jenin, the source said.
The incursions come only four days after 15 Israeli tanks backed by a helicopter gunship entered the northern West Bank town of Tulkarem for the second time since troops occupied it last month.
Palestinian security and medical sources said four Palestinians were wounded, one seriously, in an Israeli incursion late yesterday into Rafah, in the southern Gaza Strip.
Eight tanks penetrated some 200 metres into Palestinian territory, opening fire with heavy machine-guns as bulldozers demolished four houses and a dozen shops in the town's refugee camp near the border with Egypt.
The raid lasted nearly five hours and ended early this morning.
AFP