Israeli offensive builds as Bethlehem invaded Palestinian security HQ near Ramallah is attacked; 700 suspected militants arrested by Israel since Friday

RAMALLAH, West Bank--Israeli forces attacked the Palestiniansecurity headquarters near Ramallah early today and headed intoBethlehem, signaling further intensification of Israel's offensive.

Israeli forces attacked the headquarters of Palestinian PreventiveSecurity outside Ramallah, firing tank shells and machineguns,Palestinian officials said.

They said Palestinian security chief Jibril Rajoub had givenorders to the 400 men inside to resist.

Palestinian officials said Israeli soldiers used 60 Palestiniancivilians as a human shield in front of the tanks before the assault.

Israeli Army spokesman Olivier Rafowicz "categorically denied" …