- Col Gituma Wednesday said with the findings were done after four dives in the ocean on Monday and Tuesday.
- A multi-beam system that is able to look at the sea-bed in 3D was deployed.
- The family's privately hired divers who joined the multi-agency team are set to continue with the search.
The search for a woman and her daughter who plunged into the Indian Ocean 10 days ago has been narrowed to a 300-metre radius, which the authorities says is promising.
Col Lawrence Gituma said divers have mapped an area within the radius with a layer of 1.5 metres of mud that shows signs of disturbance, indicating the presence of a foreign object not common in water.
"In that locality, there is a mud layer of 1.5 metres which showed a sign of disturbance by an artificial object that is not common in the sea," he said.
This comes after a 1.2km distance of the primary search area, where the vehicle was suspected to be, had earlier been mapped.
While addressing journalists, Col Gituma Wednesday said with the findings were done after four dives in the ocean on Monday and Tuesday, after the government had provided more equipment and the family hired private divers.
During the Tuesday search, he said the equipment which he had earlier noted would be brought in by the government arrived late.
3D MULTI-BEAM SYSTEM
After inventory checks as it is the requirement by government agencies, they then deployed a multi-beam system that is able to look at the sea bed in three dimensions (3D).
The recovery operation has been going on for the last 10 days.
The multi-agency team consisting of the Kenya Coast Guard and the Kenya Navy is also set to analyse the data of all images collected in the four identified spots that had characteristics of the fallen vehicle.