The commissioner said that the state government would thoroughly investigate the cause of the collapse to prosecute anyone found culpable. The Rivers Government has sealed off the site of a collapsed building in Rumuodara, Obio/Akpor Local Government Area, saying that the structure has no approval.Isaac Umejuru, the Commissioner for Physical Planning and Urban Development, told newsmen in Port Harcourt on Saturday that the state government would hold the engineer who handled the project responsible. “The building was constructed without approval from the state government, it collapsed because …