Far Cry 4 runs smooth and exceptionally well set to HIGH.

Can progress in game and explore freely, with no issues.
However when I approach the area around next story chapter labeled as 'L' on map area, game crashes completely. with the need to run task manager to close FC4.
Any ideas?

System spec Win 7-64
16gb-DDR5
AMD Radeon HD 7000series
Latest AMD drivers installed (14.11.2)