(APNEWS.MYWAY) — 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 says he suspects it may have been the latest in a series of attacks targeting anti-polio efforts in Pakistan. Some militants oppose the vaccination campaigns, accusing health workers of acting as spies for the U.S. and alleging the vaccine is intended to make Muslim children sterile.

Last month, nine people working on an anti-polio 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.

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