"Laghman provincial women's affairs director Hanifa Safi was assassinated as a result of the explosion of a magnetic bomb attached to her vehicle," provincial police chief Abdul Rahman Sarjang said.
"Her daughter and husband along with four passersby were wounded."
Ms Safi recently said she had received a report that the Taliban was planning to kidnap her.
In light of the recent wave of targeted attacks against high-level Afghan officials, Ms. Safi said she was taking the news seriously.
“There will be more assassinations of important people, and the Taliban will try to stop women from working”