Local sources and senior Palestinian officials confirmed on Sunday that the arson attack was carried out near the village of Burin, located south of Nablus.
There has been no word on possible casualties.
The latest arson attack comes amid boiling anger among Palestinians over the death of two members of a family in a similar attack by settlers on July 31. The 18-month-old toddler of the Dawabsheh family, identified as Ali, burned to death after extremist settlers firebombed the house in the village of Duma near Nablus.
His father, Sa’ad, succumbed to his burns on Saturday.
Thousands of Palestinians poured onto the streets in Duma to attend the mass funeral ceremony for Sa’ad.
Meanwhile, Palestinian medical sources say the mother and their 4-year-old son, who were also severely burned in the attack, remain in critical condition.
In recent years, Israeli settlers have carried out various attacks on Palestinian property in the West Bank and al-Quds (Jerusalem).
Settlers, mostly armed, regularly attack Palestinian villages and farms and set fire to their mosques, olive groves and other properties.
More than half a million Israelis live in over 120 illegal settlements built since Israel’s occupation of the Palestinian territories of the West Bank and East al-Quds in 1967.