Photo taken on May 13, 2012 shows the accident site after a bridge collapsed in Pingjiang County, central China's Hunan Province. The bridge, which connects two townships of Meixianqiao and Yuping in Pingjiang county, collapsed at around 8:30 a.m. on Sunday. It is unknown how many people were injured or even killed in the collapse but witnesses said that there were people falling into water under the bridge, according to rescuers. The county was battered by torrential rains on Saturday, which might have something to do with the collapse, officials said. Saturday's strong rainfall toppled over 3,500 homes and forced more than 28,880 people to evacuate in the county. (Xinhua/Bai Yu)

Rescuers work at the accident site after a bridge collapsed in Pingjiang County, central China's Hunan Province, May 13, 2012. The bridge, which connects two townships of Meixianqiao and Yuping in Pingjiang county, collapsed at around 8:30 a.m. on Sunday. It is unknown how many people were injured or even killed in the collapse but witnesses said that there were people falling into water under the bridge, according to rescuers. The county was battered by torrential rains on Saturday, which might have something to do with the collapse, officials said. Saturday's strong rainfall toppled over 3,500 homes and forced more than 28,880 people to evacuate in the county. (Xinhua/Bai Yu)

CHANGSHA, May 13 (Xinhua) -- A bridge in central China's Hunan Province collapsed Sunday morning, local authorities and firefighters said.

The bridge, which connects two townships in Pingjiang county, collapsed at around 8:30 a.m., firefighters said.

It is unknown how many people were injured or even killed in the collapse but witnesses said that there were people falling into water under the bridge oakley scalpel sunglasses, said Su Tao, an official with the county's fire department.

So far, firefighters have not rescued anyone yet but some people have managed to climb ashore, Su said.

The county was battered by torrential rains on Saturday, which might have something to do with the collapse, officials said.

Saturday's strong rainfall toppled over 3,500 homes and forced more than 28,880 people to evacuate in the county.