At least 23 farm workers have died after Israeli aircraft fired missiles at vehicles on a farm near the Lebanon-Syria border, Lebanese officials said on Friday.

An additional 20 people were wounded in the attack and taken to hospital, while there are reports that some victims remain buried in rubble.

Witnesses said the targeted area is near to where trucks gathered to transport supplies to civilians.

The death toll in the border attack is one of the highest since the Israeli offensive into Lebanon  began three weeks ago following the capture of two Israeli soldiers by Hezbollah fighters.