The Palestinian farmers were working in their fields in al-Faraheen area, east of Khan Younis city, when they came under machine gun fire from the Israeli army posts on the border, witnesses said.
According to security sources, machine gun fire was also recorded on the border line in northeast Gaza Strip and the east of Jabaliya town.
There were no casualties in the two shooting incidents.
Meanwhile, three Israeli bulldozers, backed by two tanks, rolled for a few hundred of meters into Beit Lahiya town, an agricultural community in northern Gaza Strip. Residents said the bulldozers leveled some groves and withdrew later on Saturday morning.
Palestinian militants fired three mortar shells at the invading troops in Beit Lahiya. The military wing of the Popular Resistance Committees (PRC) claimed responsibility for the mortar attack.