3 Palestinian gunmen killed in mysterious blast in Gaza

Three Palestinian gunmen were killed on Tuesday in a mysterious explosion in a military training base near Rafah in the Gaza Strip, Palestinian security sources in Gaza said.
The sources said that the explosion occurred inside a training base belonging to the armed wing of the Popular Resistance Committees, an alliance of armed groups in the Gaza Strip.
The three men were identified as Mahmoud al-Arqan, Ramzi Abu Harb and Yunsi Abu Naja.
Local journalists said that several other people were wounded in the blast, which also caused huge damage. Hamas policemen sealed off the area and launched an investigation into the circumstances of the explosion, they said.