IDF forces entered the Gaza Strip Friday morning, and operated near the Sufa crossing in the southern Strip.
Palestinian sources reported that fire clashes broke out between gunmen and Israeli troops, with the help of choppers and tanks.
No injuries were reported.
According to the Palestinians, IDF forces attempted to enter the Gaza and were identified by Salah al-Din Brigades gunmen, who opened fire at the troops.
Abu Suhaib, spokesman for the Popular Resistance Committees' military wing said his organization's men were not far from the troops when clashes broke out, and even managed to fire a shell at the Israeli forces.
Gaza sources added that two Israel Air Force choppers arrived at the scene to assist the troops, and were followed by IDF tanks entering the Strip.
The IDF Spokesperson's Unit confirmed that "IDF forces are carrying out anti-terror activity in the southern Strip", giving no further details.
Thursday night, Palestinian sources said IDF forces, accompanied by helicopters, operated in the central and northern Gaza Strip.
The IDF said helicopters fired flares in the area due to fears of a possible terror attack near the border fence.