A helicopter with the National Iranian Oil Company (NIOC) crashed in the Caspian Sea early on Sunday, governor of Behshahr in this northern Iranian province has announced. 
Technical failure caused the crash after the helicopter with five on board took off on a mission to carry an injured person from an oil platform, Khaleq Sajjadi told (IRNA) News Agency. 
According to Sajjadi, the fate of the five is not clear yet. 
Further information will be released later.

Source: QNA