Rivers State federal lawmakers in the House of Representatives have called on the US Government to thoroughly investigate the cause of the helicopter crash that claimed the lives of Access Holdings CEO, Herbert Wigwe with five other person in California on Saturday.

They made the call in a statement on Monday.

Also, the federal government has joined the investigation of the incident to unravel the cause of the crash.

Bimbo Oladeji, the Director of Public Affairs and Consumer Protection, revealed that it has offered its full cooperation to the US National Transportation Safety Board, NTSB, in the investigation sad incident