Seven development workers in north-west Pakistan, six of them women working at a health and education project, have been shot dead.
The assault took place near a children's community centre. All the victims were Pakistani citizens and a number of the women were teachers.
Their vehicle came under fire from men on motorbikes with guns near a centre run by the respected Pakistani charity Ujala (Light), say local police.
The shooting happened in the Swabi district, which is close to a road connecting Peshawar to the eastern city of Lahore.
The centre is a combination of a school and a clinic specialising in maternal health.
No one has claimed direct responsibility for the atrocity yet, but Taliban allied groups have been carrying out a series of attacks against polio vaccination initiatives, believing them to be a "US plot".
Similarly, the Taliban oppose women's education.
Ujala's slogan is "Journey towards an educated Pakistan". It works for free, high quality schooling and equality.