Israel said a blast at a Hezbollah house in southern Lebanon on Monday showed munitions were being stockpiled in violation of a truce, Reuters reported.
A senior military source said the explosion indicated the Iranian-backed guerrilla group Israel fought in a month-long war in 2006 was keeping "banned ammunition" in southern Lebanon.
"The Israeli military has asked UNIFIL to open an investigation," the source said, using the acronym for a United Nations peacekeeping force that has patrolled the troubled Israeli-Lebanese border area for more than three decades.
The cause of the blast appeared to be accidental, reports from Lebanon said. An Israeli military spokeswoman also confirmed Israel had "nothing to do" with the incident.
A U.N.-mediated truce ending the war of three years ago mandated that a swathe of southern Lebanon be free of weaponry, in exchange for an Israeli troop pullout.
Israel also accused Hezbollah of violating the truce after an explosion in southern Lebanon in July.
Israel demands U.N. probe of Lebanon blast
