( dpa )- Lebanese media and army sources reported that Israeli troops fired late Sunday at two civilians near the Ghajjar area in southern Lebanon, killing one and wounding the other.
"One of the wounded civilians has died from serious wounds," a Lebanese army source said, while a hospital source said the wounded individual was in stable condition.
Local radio reports quoting Israeli media said Israeli soldiers exchanged fire with Lebanese gunmen along the border.
The Israeli reports indicated that "the gunfire started from the Lebanese side, which prompted the Israeli soldiers to fire back and hit the gunmen."
The nature of the incident was unclear, but some initial reports speculated that it may have involved the drug trade.
UN spokeswoman Yasmina Bouzian told Deustche Presse-Agentur dpa the international organization was checking into the incident.
Last month two Katyusha rockets were fired from Lebanon at the Israeli town of Shlomi , causing only material damage.
Ghajjar is located on the edge of the contested Shebaa Farms region of the Israeli-occupied Golan Heights.
Tensions between Israel and Lebanon have been high since the end of the war with Lebanon-based Shiite group Hezbollah in 2006.
Hezbollah chief Sheikh Hassan Nasrallah warned Israel in January that the movement would not "remain idle if any Lebanese civilians are hurt" in Israeli incursions.
Hezbollah press office has refused to comment on the incident.