Popular South African film director, Nkosi Nathi, has expressed frustration after a DNA test revealed that he is not the biological father of his wife’s newborn daughter.

The filmmaker shared his ordeal in a post via his Instagram page on Monday, stating that the incident had left him traumatized.

Nkosi said he received the news of becoming a father nine months ago and has doted on the baby girl since birth.

However, an incident compelled them to conduct a DNA test, and the result was negative.

Nkosi said he shared his story to encourage other men to conduct a DNA test.

He said, “Today was meant to celebrate my first Father’s Day. I’m shattered beyond words. Nine months ago, I was introduced to the news that I would be a father. I are for my unborn child and she became my world. I spent some time with her and it was a life changing experience.

“She was born on May 20 a day before my birthday. After some incident, her mother and I agreed to do a DNA test. The result came back negative, I am not her father. I am making this post to encourage other brothers out there: With all that happened, I still want to be a part of the better and responsible generation of men.