The Lebanese army has engaged in clashes with Syrian troops on Lebanon’s eastern border with Syria, in the latest round of fighting that started on Sunday night.

The new Syrian government, led by Hayat Tahrir al-Sham, accused Lebanese group Hezbollah of kidnapping and killing three members of Syria's security forces.

Different accounts of the events that unfolded on Sunday night have emerged from both sides.

Hezbollah has denied any involvement, while a Lebanese security source told Reuters that three Syrian soldiers initially crossed into Lebanese territory and were subsequently killed by armed members of a tribe in northeastern Lebanon. The tribe reportedly feared their town was under attack.

Syrian forces shelled Lebanese towns overnight in retaliation for the deaths, causing some Lebanese residents to flee.