Lebanon's military says troops have shot and killed a man suspected of wearing an explosive belt near a Palestinian refugee camp.
Officials provided few details on Saturday's incident near the Ein el-Helweh camp outside the southern city of Sidon.
Hours earlier, an explosive device killed a soldier in the town of Abdeh near the northern city of Tripoli.
Lebanese security officials say a second device found nearby was defused before it could explode.
Meanwhile, Lebanese Prime Minister Fuad Siniora led a second day of talks Saturday with leaders of rival parliamentary blocs about forming a national unity government.
Mr. Siniora is expected to present a possible Cabinet lineup to Lebanon's new President Michel Suleiman.
Lebanon is trying to recover from sectarian violence that nearly resulted in a civil war.
Lebanon's pro-Western ruling party recently agreed to form a national unity government with the Hezbollah-backed opposition. The agreement calls for a 30-member Cabinet that gives Hezbollah veto power over government decisions.
Lebanon's parliament also elected Mr. Suleiman, a former army chief, as president as part of the agreement. He took office Monday.
Some information for this report was provided by AFP and AP.