(Xinhua) -- More than a dozen Palestinian militant groups on Thursday pledged to step up joint and separate attacks on Israeli targets to foil Israeli-Palestinian peace negotiations kicking off in Washington Thursday."The factions agreed that all means are open to the Palestinian resistance to deal with Israel in the coming phase," Abu Obaida, spokesman of the Hamas armed wing, read a statement of the Gaza- based groups in a press conference held in the Gaza Strip.
On Tuesday, Hamas militants killed four Israeli settlers near the West Bank city of Hebron. The next day, Hamas claimed responsibility for another drive-by shooting in which two Israelis were injured near Ramallah.