A Shell-owned oil flow station in Nigeria has been damaged by planted explosives, according to a statement releases by the company.
The incident in the troubled Niger Delta marks the latest attack in a region supposedly brought under control by a government amnesty programme.
A previously unknown militant group claimed responsibility for the attack, which took place on Tuesday on the Kokori oil flow station, operated by a Shell subsidiary in Nigeria, reports Associated Press.
Shell spokesman Tony Okonedo said the flow station was not in use and was unmanned at the time of the explosion, so there were no injuries, according to the report.
In a statement to Nigerian newspapers, a group calling itself The People's Patriotic Revolutionary Force of the Joint Revolutionary Council claimed it attacked the flow station.
The group warned all foreign oil companies to leave the oil-rich Delta immediately or face further violence, writes Associated Press.
Attacks in the Niger Delta have affected world oil prices in the past.