Two Palestinian militants open fire on Israeli troops during an arrest raid on a house near Jenin.

The two were killed during an arrest raid, when they were about to be arrested they grabbed their guns but were killed in the firefight.

In the West Bank city of Nablus, Israeli soldiers killed three Palestinian militants during an arrest raid that turned into a shootout, the Israeli military said.

In the second case, an Army spokesman said, Palestinian gunmen in Tulkarm fired on soldiers on an arrest raid.

On Thursday two Palestinians, both 16, died from Israeli fire during a contested arrest raid in Jenin.

In the southern Gaza town of Rafah, Israeli troops on an arrest raid surrounded a house and then came under fire from Palestinians inside, the military said.

Israel already imposes a web of travel restrictions against the Palestinians and conducts almost daily arrest raids against suspected militants.

Early Friday, the army shot and killed two Aksa gunmen in the Balata refugee camp near Nablus during an arrest raid.

Israel has been carrying out almost nightly arrest raids in Palestinian cities and towns, but the operation in Rafah appeared to be on a much larger scale.