Two employees from oil company Shell have been kidnapped in Nigeria.
The staff members were returning from a business trip, when their vehicle was attacked on a road in Rivers state in the Delta region.
Police escorting the workers were killed in the attack.
Efforts are underway to locate them.

Iran studying deal to halt war as stalemate persists
WHO says suspected Ebola cases drop to 116 after hundreds ruled out
Israel strikes south Lebanon after holding off Beirut attack
At least 22 killed in heavy Russian attack on Ukrainian cities
Two killed in Kenya protest against US Ebola quarantine facility as Ruto defends plan
