Rescuers work at the construction site on Line 11 where a fire broke out in Shanghai, east of China, Jan. 8, 2009. The fire broke out 20 meters underground at the construction site, killing one worker and injuring six others, according to the fire brigade.

Smoke rises from a construction site of subway line 11 in Shanghai, east of China, Jan. 8, 2009. The fire broke out 20 meters underground at the construction site, killing one worker and injuring six others, according to the fire brigade.

A worker checks the collapsed crane which caused the operator dead at a construction site of subway line 9 in Shanghai, east China, Jan. 8, 2009.

SHANGHAI, Jan. 8 (Xinhua) -- Two people died here on Thursday in two separate accidents at rail construction sites, local officials said.

A crane driver died at 10:30 a.m. after the crane overturned at the city's Line 9 urban rail, which is under construction, said an official with the local work safety bureau.

Just an hour later, a fire broke out 20 meters underground at a construction site on Line 11, killing one worker and injuring six others, according to the fire brigade.

The fire was put out at about 1 p.m.. The injured workers have been hospitalized.

Authorities are investigating the causes of the accidents.