Israeli troops fired at least two flares over southern Lebanon late on Saturday, forcing the Lebanese army to go on alert.
The incident took place as around 50 villagers from the southern town of Abbasiyeh crossed the so-called Blue Line border separating Lebanon and Israel after removing the barbed wire set up three days ago by the Israeli army, the Lebanese army said in a statement.
Last week Lebanon accused Israel of crossing the Blue Line, which was initially demarcated to correspond with the line of the Israeli military’s forced withdrawal from Lebanon in May 2000.
Hezbollah said the Israeli move was instigated by the United States’ recent statement claiming that Syria had given Hezbollah Scud missiles, an allegation rejected by Syria and Hezbollah.
"With this position, (the Americans) are encouraging Israel to carry out an aggression against Lebanon that they are trying to endorse at the international level," Hezbollah MP Ali Fayyad told AFP on Saturday.
"The United States is thus placing itself in a position of complicity in the event of aggression and it will have to take responsibility," he said.