Four people were hospitalised for eight days after the 1 March attack, with injuries to their heads and arms.
All four families are from the Hmong people group and only recently converted to the Christian faith.
The provincial authorities had advised them against continuing with their newfound faith and village leaders told them that unless they renounce Christianity they will be forced to leave their village.
The families’ pastor is understood to be in talks with local authorities about the incident.
Among the one million Hmong in Vietnam, there are an estimated 400,000 Christians – a higher proportion than in Vietnam’s population as a whole (about 9%). The religious transformation of the people group has been described as “remarkable”. The Hmong, just like Vietnam’s other Christians, face threats to their religious freedom through the government’s new Law on Belief and Religion, which came into effect this year and has, so far, been used to criminalise a Catholic mass.
Vietnam’s Hmong live mainly in the country’s northwest and central highlands.
Sources: World Watch Monitor