One person is said to have been killed in a protest around Nkpolu junction along the East-West road in Port Harcourt, the Rivers State capital, while several others sustained various injuries.
The incident happened on Monday when some residents of the community were said to have taken to the streets to protest over the bad condition of a portion of the expressway, barricading it and causing a gridlock.
In a bid to control the commotion, some security agents reportedly clashed with the protesting youths, resulting in the killing.
The spokesperson of the Rivers State Police Command who confirmed the incident, however, said no one was killed.
Meanwhile, a truck, cars and a building were also affected.