Aftermath of the earthquake in China

A child is buried under the rubble. China poured more troops into the earthquake-ravaged province of Sichuan to search for survivors as time ran out for thousands of people buried under rubble and mud Photograph: STR/Reuters

Soldiers carry a survivor from the rubble Photograph: STR/Reuters

A Chinese nurse helps a youth trapped in the rubble Photograph: Xinhua/AFP

Soldiers carry a wounded child Photograph: STR/Reuters

Rescuers pull a girl from the rubble of a collapsed school Photograph: Ng Han Guan/AP

A rescuer takes out a boy found in the debris Photograph: Cao Yi/EPA

A Chinese boy is put on a drip while he waits to be dug out Photograph: AFP

A relative holds the hand of a victim killed when a school building collapsed Photograph: STR/Reuters

A trapped survivor waits to be rescued Photograph: Sipa Press/Rex

Injured victims sit on the rubble in Beichuan, Sichuan province Photograph: STR/Reuters

An injured man stands outside his destroyed home Photograph: Mark Ralston/AFP

A portrait of a married couple hangs from the remains of a block of flats that collapsed Photograph: David Gray/Reuters

Exhausted rescue workers take a rest during a search operation in a damaged residential building Photograph: Nir Elias/Reuters

Injured residents walk along a street Photograph: STR/Reuters

A woman breaks down as she waits to identify a family member at a temporary mortuary Photograph: Xinhua/AFP

A mother holds the body of her son at the playground of a school at the earthquake-hit Hanwang town in Mianzhu county Photograph: Jason Lee/Reuters