Israel fired barrages of artillery into southern Lebanon on Sunday after Hezbollah targeted three Israeli military positions in the disputed Shebaa Farms.

There were no immediate reports of casualties. The cross-border fire comes a day after a surprise attack by Palestinian gunmen on Israeli towns left at least 250 Israelis dead, with another 230 Gazans killed in Israel’s retaliatory bombardment.

Hezbollah, a powerful armed party backed by Iran, said it had launched guided rockets and artillery onto three posts in the Shebaa Farms “in solidarity” with the Palestinian people.