The three were killed in the early hours of Monday morning amid a blockade of the Balata refugee camp.
Three Palestinians were killed in a raid by Israeli forces on the Balata refugee camp in the occupied West Bank, the Palestinian health ministry said in a statement.
The incident happened around 01:00 a.m. local time (2200 GMT Sunday) on Monday after Israeli forces blocked entrances to the camp with bulldozers, preventing ambulances and journalists from entering, residents told Al Jazeera.
The raid was one of the biggest operations in years, they said.
The Palestinian Health Ministry identified the three men killed as Muhammad Abu Zaytoun, 32, Fathi Abu Rizk, 30, and Abdullah Abu Hamdan, 24.
There was no immediate confirmation of the deaths by the Israeli military.
Israel has carried out a series of incursions into the occupied West Bank since the start of the year, and earlier this month attacked Balata where it killed two Palestinians.
On this occasion, the Fatah movement of Palestinian President Mahmud Abbas declared that the two men kill were members of its armed wing, the Al-Aqsa Martyrs Brigades.
Monday’s raid came after a car-ramming attack near Nablus on Sunday in which an Israeli soldier was injured.