Peugeot 308 oil Leak

[SANVIN]

Hi, this is a Peugeot 308 with 1.6 HDI Diesel engine. There are oil leaks from the top hoses of the engine in the driver side. Bit of a spray on the wiper guard as well. Sadly I cannot post links / images.

Wanted to see if anyone could help narrow down the problem from experience.

Thank you in advance. Any questions please let me now.