GAZA CITY (Ma'an) -- Israeli jets bombed several sites linked to militant groups in southern Gaza before dawn on Sunday, witnesses said.

Warplanes hit a training site of the Popular Resistance Committee's al-Nasser Salah Addin brigades in Rafah, without causing injuries.

Another raid targeted a location of Hamas' Al-Qassam Brigades in the city, and another in Gaza City.

Also in Rafah, airstrikes flattened the home of an al-Qassam fighter who was killed in 2008, Hamdan Abu Naqira, witnesses said.