ISLAMABAD — Gunmen on motorcycles sprayed a van carrying employees from a community center with bullets Tuesday, killing five female teachers and two aid workers, but sparing a child they took out of the vehicle before opening fire.
The director of the group that the seven worked for said he suspects it may have been the latest attack targeting antipolio efforts in Pakistan. Some militants oppose the vaccination campaigns, accusing health workers of acting as spies for the United States and alleging the vaccine is intended to make Muslim children sterile.
Last month, nine people working on an antipolio vaccination campaign were shot and killed. Four of those shootings were in the northwest where Tuesday’s attack took place. The attack was another reminder of the risks to women educators and aid workers from Islamic militants who oppose their work. It was in the same conservative province where militants shot and seriously wounded 15-year-old Malala Yousufzai, an outspoken young activist for girls’ education, in October.
Meanwhile, measles cases surged in Pakistan in 2012, and hundreds of children died from the disease, an international health body said Tuesday. The World Health Organization did not give a reason for the increase in deaths, but a provincial health official in Sindh said the disease hit areas where poor families did not vaccinate their children.
A spokeswoman for the World Health Organization, Maryam Yunus, said 306 children died in Pakistan of measles in 2012, compared with 64 the year before.
She said the jump was most pronounced in southern Sindh Province, where measles killed 210 children in 2012. She said 28 children died there in 2011.
There was no immediate claim of responsibility for the latest shootings.
The teachers and health workers — one man and one woman — were killed in Khyber Pakhtunkhwa Province on their way home from a community center in Swabi where they were employed at a medical clinic and primary school. Their driver was also injured.
Javed Akhtar, the director of Support With Working Solution, said the medical clinic vaccinated children against polio, and many of the nongovernmental organization’s staff had taken part in immunization campaigns. Militants in the province have blown up schools and killed female educators. They have also kidnapped and killed aid workers, viewing them as promoting a foreign, liberal agenda.
Khyber Pakhtunkhwa Province, formerly called the Northwest Frontier Province, borders the tribal areas of Pakistan along the frontier with Afghanistan to the west. Militant groups such as the Taliban have used the tribal areas as a stronghold from which to wage war both in Afghanistan and against the Pakistani government. Often that violence has spilled over into Khyber Pakhtunkhwa Province.
In 2007, the Taliban led by Maulana Fazlullah took over the scenic Swat Valley, marking the height of their strength there. The Pakistani military later pushed the militant group from the valley, but the Taliban have repeatedly tried to reassert itself.
The injured driver in Swabi told investigators that the gunmen stopped the vehicle and removed a boy — the son of one of the women — before indiscriminately opening fire, said police officer Fazal Malik. The woman’s husband rushed to the scene after receiving a phone call alerting him to the shooting. ‘‘I left everything and rushed towards the spot. As I reached there I saw their dead bodies were inside the vehicle and he [his son] was sitting with someone,’’ said Zain ul Hadi.
Swabi Police Chief Abdur Rasheed said most of the women killed were between ages 20 and 22. He said four gunmen on two motorcycles fled the scene and have not been apprehended.