Gunmen have shot and killed a mother and her daughter who were working for an anti-polio campaign under way in Pakistan’s south-western city of Quetta, police said.

Update at 12.45am: Gunmen who stormed a police training centre in Quetta in Pakistan killed 33 trainees, a health official has said.

Pakistani militants have struck at the heart of the country's legal profession, killing a prominent lawyer and then bombing the hospital where dozens of others had gathered to mourn.