"A decision was taken that we will handle our obligation
to stop violence against Israelis anywhere," said Cabinet minister Saeb Erekat.
He did not provide details.
news - web sites) urged Abbas in a phone call Sunday to rein in the armed groups.
The new Palestinian leader, Mahmoud Abbas, is under growing pressure to take
action against militants following last week's attack at the Karni crossing.
Israel suspended ties with Abbas and U.S. Secretary of State Colin Powell
The security forces in Gaza have been instructed to investigate the Karni shooting, said Erekat said.
Israeli officials have said they have indications that the attackers left from a Palestinian Authority (news - web sites) base. Three militant groups, including Hamas and the Al Aqsa Martyrs' Brigades with ties to Abbas' ruling Fatah (news - web sites) movement, carried out the attack.
Hamas spokesman Mushir al-Masri said the group would not comply with the new orders. "We consider resistance as a red line, and no one is allowed to cross this line," al-Masri said.