Eastern China housing collapse leaves 9 buried

State media report nine people have been buried in the collapse of a group of homes in eastern China.

The Xinhua News Agency says four homes tumbled early Thursday in the city of Wenzhou in Zhejiang province, just south of the commercial hub of Shanghai.

Xinhua says crews are working carefully because the collapsed homes were attached to buildings that had remained standing. Calls to local police and rescue crews rang unanswered, likely due to the week-long national holiday.

No immediate cause was given for the collapse and Xinhua says there have been no reports of extreme weather in recent days.

In October, 22 people were killed in Wenzhou when a cluster of decrepit homes collapsed, apparently because of poor construction and the building of additional levels on unstable foundations.