A large blast occured on Lebanon's southern border with Israel on Monday, according to the country's state news agency.
The source of the explosion, which took place close to Tair Harfa, an inland village around four kilometers from the border, has so far been left unexplained.
Andrea Tenenti, spokesman for the U.N. peacekeeping force in the area, UNIFIL, said it was investigating. However, local security officials said Hezbollah, which controls much of the South of the country, had already cordoned off the area and had not authorized anyone to speak publicly about the blast.
Southern Lebanon has been a hot spot for violence for many years, due to its proximity with Israel. The border area underwent a bitter conflict in 2006, when Israel took on Hezbollah militants in the locale.