Suicide blast rocks Lahore

An injured man is helped by Pakistani officials after the blast Photograph: Arif Ali/AFP

Pakistani people move a policeman injured in the latest in a wave of suicide attacks across the country over the past year Photograph: Arif Ali/AFP

A Pakistani boy sits next to an injured man Photograph: Arif Ali/AFP

A casualty of the blast is helped from the scene outside the high court in Lahore Photograph: Arif Ali/AFP

Police officers help a colleague injured in the attack. Officers had been deployed in front of the high court ahead of a planned protest by lawyers when the bomb went off Photograph: K M Choudary/AP

Policemen carry a wounded colleague Photograph: K M Chaudhry/AP

An ambulance arrives outside the mortuary of the Lahore Mayo hospital Photograph: Warrick Page/Getty

A doctor checks x-rays of a wounded police officer in the observation ward of the Lahore Mayo hospital Photograph: Warrick Page/Getty

A 21-year-old police officer lies wounded in the observation ward Photograph: Warrick Page/Getty

A wounded rickshaw driver has x-rays taken at the Lahore Mayo hospital Photograph: Warrick Page/Getty

A wounded police officer is wheeled through the observation ward at the Lahore Mayo hospital Photograph: Warrick Page/Getty

A man sits holding prayer beads outside the intensive care unit waiting to hear news of a wounded family member Photograph: Warrick Page/Getty

Police investigate the site of the suicide bombing Photograph: Warrick Page/Getty

Police guard the site of the attack Photograph: Warrick Page/Getty