An explosion in the southern Gaza Strip killed a member of the armed wing of the Popular Resistance Committees, the Nasser Salah al-Din Brigades confirmed late Saturday. Khalid al-Qaisi, 38, died and five others were injured in the blast at the family's home in Rafah, the group said in a statement. The injured were not immediately identified. The PRC said secretary-general Zuhair al-Qaisi, a relative of Khalid, was unharmed.