Israel's flag flew over the medieval fortress on Beaufort in Lebanon on Friday as it warned Lebanese civilians to evacuate a large area of the south of the country ahead of stepped up ground operations. Shelling was audible and smoke rose from the surrounding area as the invading army's banner was seen by AFP above the castle, which Israeli forces famously used as a base during their previous two-decade long occupation.

Beaufort Castle was built in the 12th century, and Israeli attacks have repeatedly targeted the surrounding area

As part of an offensive operation, the Israeli army intends to regain control of the fortress