Lebanese President Joseph Aoun condemned Israel on Saturday for carrying out intense pre-dawn strikes on civilian facilities that the health ministry said killed at least one person.
"Once again, southern Lebanon has been the target of a heinous Israeli aggression against civilian installations -- without justification or pretext," Aoun said.
"The seriousness of this latest attack lies in the fact that it comes after the ceasefire agreement in Gaza."
The Lebanese health ministry said an Israeli strike left one person dead and seven others wounded in al-Msayleh.
The ministry later said that the one slain was a Syrian citizen, while the wounded were a Syrian national and six Lebanese, including two women.
The strikes hit a place that sold heavy machinery, destroying a large number of vehicles.
The Israeli military said it attack an area where machinery was stored to be used to rebuild infrastructure for Hezbollah.
Since the 14-month Israel-Hezbollah war ended in late November with a US-brokered ceasefire, Israel has carried out almost daily airstrikes killing dozens of people.