Israeli troops have arrested seven suspected Islamic militants during an incursion into the West Bank town of Hebron.
The raid comes after Israel eased some travel restrictions on Palestinians in the Gaza Strip, and Israeli soldiers killed a Palestinian man inside Palestinian territory.
The detainees were students at a Hebron university.
Meanwhile, Israel has agreed to reopen the Rafah border crossing from Gaza to Egypt, ease roadblocks on the main road running the length of the strip, and allow Palestinians to repair damage to the runway at the Gaza airport.
However a spokesman for Prime Minister Mr Ariel Sharon, said despite the airport reopening, Palestinian leader Mr Yasser Arafat will not be allowed to travel until Palestinian police arrest the assassins of an Israeli Cabinet minister gunned down in October.
Israel prevented Mr Arafat from attending Christmas celebrations in Bethlehem for the same reason PA