Dungun Police chief Supt Ahmad Zailani Yaacob said the body of Hussin, 43, was found by his landlord at about 10am.
"Earlier, the 42-year-old landlord went looking for Hussin at the house after his 15 phone calls went unanswered.
"Then he saw blood stains on the floor which led him to find a body in a five metre deep septic tank outside the house," he told reporters at the scene.
![Traces of blood seen in the septic tank](http://img.astroawani.com/2015-12/51449760810_freesize.jpg)
![The deceased's sleeping area is also stained with blood, on the floor.](http://img.astroawani.com/2015-12/61449760820_freesize.jpg)
The body was taken to the Tengku Ampuan Afzan Hospital, Kuantan for post-mortem.
Police said some villagers reported seeing the victim involved in a fight with a Myanmar national Wednesday afternoon.