Gunmen have kidnapped a Romanian engineer in the Niger Delta, according to reports.
A search has been launched by officer for the man who was abducted late on Monday.
A spokeswoman for police in Niger Delta state said the man was working for Dextron Nigeria.
There have been a number of militant attacks on oil and gas facilities in recent months.
Militants have said they are fighting for a greater share of oil revenues for the Niger Delta region.