Strong aftershock hits Christchurch

A powerful aftershock rocks the devastated New Zealand city of Christchurch, causing minor damage.
Police officers walk through the central business district in earthquake damaged Christchurch on Wednesday. Police said Sunday the death toll from the Feb. 22 quake had reached 166. The city was also hit Saturday by an aftershock that caused minor damage. (Mark Baker/Pool/Associated Press)

A powerful aftershock has rocked the devastated New Zealand city of Christchurch.

The GNS Science monitoring agency said the magnitude 4.8 aftershock struck Saturday night causing minor damage.

Meanwhile, the confirmed death toll from last month's magnitude 6.3 earthquake has risen by one to 166. Police Supt. Sandra Manderson told reporters another body was recovered Saturday. The final toll is expected to exceed 200.

A police cordon around the downtown disaster area was partially lifted Sunday to allow some residents and business owners to return to their ruined premises for the first time since the Feb. 22 quake.