Hard rain hampers search efforts in New York

Rescuers searching for survivors in the rubble of the World Trade Center towers had to deal with pouring rain Friday morning. The weather forced searchers to stop, leaving the bulldozers and backhoes to take over.

Footing for workers moving about in the rubble has been dangerous all along which is only made worse with the heavy coating of dust turned into slippery muck.

With the death toll expected to rise to about 5,000, only 194 people have been pulled out of the rubble. Of those, only 47 have been complete bodies.

It's a gruesome scene and a grisly task for emergency services workers who are searching for their friends and colleagues caught inside trying to save people when the towers collapsed. Nearly 200 firefighters and police officers are missing.

Thousands of tonnes of material have been hauled away from the site without making a dent in the mountain of rubble.