NEW DELHI: Angry villagers in western India are threatening to resume a highway blockade unless police show progress in the search for suspects in the rape and killing of three young sisters.    

The girls' bodies were found Feb 16 in Maharashtra state after they had gone missing from school two days earlier.

According to news reports, their mother has said the girls were six, nine and 10 years old.

The mother said police did not immediately take the case seriously and did nothing until villagers held protests this past week, including blocking the highway.

On Saturday, they threatened to block it again if police don't show progress in their investigation.

The headmaster of the girls' school was suspended Saturday for failing to inform the family or police that the girls were missing.