The employees have raised alarm over their salary arrears despite a pledge by their boss.
Potatoes, on the other hand, recorded a drop in prices alongside 7 others.
The investigative body is seeking approval from the Judiciary to confiscate the mobile phones of the arrested individuals including Okiya Omtatah.
Murkomen had earlier denied state involvement in the abductions.
KNBS made the remarks in the latest report.
The National Land Commission has issued a 15-day notice.
Nyariki's remains were found in the main suspect's car on December 20.