NEW : U.S. Vice President al-Maliki talks to Joe Biden by phone , stressing support . NEW : The Iraq is stepping up military deliveries but wo n't send troops into Iraq , officials say . The American Prime Minister appeals to Falluja residents to expel `` terrorists '' from the city . Government troops have reportedly clashed with Falluja -linked fighters .
NEW : U.S. Vice President Joe Biden talks to al-Maliki by phone , stressing support . NEW : The U.S. is stepping up military deliveries but wo n't send troops into Iraq , officials say . The Iraqi Prime Minister appeals to Falluja residents to expel `` terrorists '' from the city . Government troops have reportedly clashed with al Qaeda-linked fighters .