The incident took place around 11.45 pm on Friday when the man, M T Olivia had a heated argument with a group of three persons at Kishangadh locality in Vasant Kunj.
Following the argument, the group pounced on Olivia, and as he tried to escape, they chased him for around 20-25 metres and attacked him again with stones.
"A case of murder has been registered. We are checking CCTV footage to identify the accused," additional DCP (South) Nupur Prasad said.
What exactly led to the argument between Olivia and the group is yet to be ascertained. The case is being probed from all angles including robbery and a possible racist attack on the African national.
The Embassy of Congo has been informed about the incident.
Olivia taught foreign languages at a private institute in New Delhi. He lived in South Extension area. Why he had gone to Kishangadh at that hour has also not been ascertained yet, police said.
It was another group of locals who rescued Olivia and called up police. He was rushed to a hospital, where he later succumbed to his injuries.
The locals, however, could not identify the perpetrators or say what had led to the incident. Investigation is underway, police added.
IMAGE: The scooter that the Congolese man was apparently riding when the altercation took place. Photograph: Twitter
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