The only television crew reporting from inside the besieged town, Aljazeera crew members on Friday complained they had been fired at twice during the day.
The staffers have since been forced to move to a safer location within the restive town, transformed into a ferocious battleground between US soldiers and Iraqi resistance fighters.
Aljazeera correspondent in Falluja, Ahmad Mansur said US F16 planes also bombed places disconcertingly close to the news channel's office.
Aljazeera journalists have found themselves at the receiving end of US-aggression often in the past.
The only television crew reporting from inside the besieged town, Aljazeera crew members on Friday complained they had been fired at twice.
During the war in Afghanistan, Aljazeera's office in capital Kabul was bombed.
Aljazeera correspondent, Tariq Ayyoub, was killed in capital Baghdad by US-tank fire as he prepared to broadcast during last year's Iraq war.
Reporting from Falluja, Mansur said the situation inside the besieged town was grim.
Surrounded on all sides by the US occupation soldiers, residents inside have run out of supplies.
Public appeals were being made from the local mosques for shrouds to wrap the many dead. A local doctor put the Iraqi toll in the town at 450.
Ambulances arriving from Baghdad to evacuate the seriously injured had difficulty in gaining access to the town.
US soldiers opened fire, forcing six of the ambulances to retreat as they attempted to reach the Talib al-Janabi clinic.