Mr Tinubu emerged winner of the exercise in Rivers, polling a total of 280,082 votes.
NIMASA said the incident occurred around Latitude 4.512375 and Longitude 7.189429, leading to oil pollution within the affected area.
Mr Chinda polled a total of 268,497 votes.
The embattled governor of the oil-rich state said he faced insurmountable odds in his effort to secure the ruling party ticket.
Some Environmental Experts in the Niger Delta have called for urgent interventions towards tackling persistent environmental pollution in the region.
The Federal Road Safety Corps has decried the use of unauthorised number plates and unapproved diplomatic seals.
The police have dismissed officers John Okoi, Eyibo Asuquo, Udo Ndipmong, Bright Nwachukwu and Anele Ikechukwu for armed robbery and kidnapping.
According to him, the suspects fled on sighting naval personnel.
Security operatives arrested 13 suspected cultists during an initiation ceremony in the Eleme local council area of Rivers.
Mr Folorunsho said the operations had significantly degraded the capacity of criminal elements.
