Chinese-run ship boarded by pirates in Gulf of Guinea, says risk firm.

Pirates have boarded a Chinese-run oil tanker, Success 9, in the Gulf of Guinea, according to a risk management company. It is unclear how many crew members were on board or how many pirates boarded the vessel. The Gulf of Guinea is the world's most dangerous spot for attacks on ships, and this is the second such incident in a little over two weeks. The incident could be a kidnap and ransom incident or cargo theft.